### Tamilnadu Board Science Question papers for 10th Standard (English Medium) Question paper & Study Materials

#### 10th Standard Science English Medium Model Question Paper Part - V - by Ganesh - Dharapuram - May 13, 2020 - View & Read

• 1)

The gravitational force of earth acting on a body of mass 1 kg is ___________

• 2)

A convex lens forms a real, diminished point sized image at focus. Then the position of the object is at

• 3)

SI unit of temperature is

• 4)

Penetration power is the greatest in_______ rays

• 5)

Mass of 1 mole of Nitrogen atom is

#### 10th Standard Science English Medium Model Question Paper Part - IV - by Ganesh - Dharapuram - May 13, 2020 - View & Read

• 1)

Study of moving bodies under the action of forces ______

• 2)

Power of a lens is –4D, then its focal length is

• 3)

All the substances will undergo the following changes like _____ when heated.

• 4)

The main source of stellar energy is
(i) fission reactors
(ii) fusion reaction
(iii) chemical reaction
(iv) thermonuclear reactions

• 5)

Th e volume occupied by 4.4 g of CO2 at S.T.P

#### 10th Standard Science English Medium Model Question Paper Part - III - by Ganesh - Dharapuram - May 13, 2020 - View & Read

• 1)

A & B are two objects with masses 100 kg & 75 kg respectively, then _______

• 2)

Which of the following lens would you prefer to use while reading small letters found in a dictionary?

• 3)

Linear expansion is the change in _____ when object is heated or cooled.

• 4)

૪ rays are ________ in charge.

• 5)

The gram molecular mass of oxygen molecule is

#### 10th Standard Science English Medium Model Question Paper Part - II - by Ganesh - Dharapuram - May 13, 2020 - View & Read

• 1)

When you paddle a canoe, the canoe goes forward. This is an example of _______

• 2)

Where should an object be placed so that a real and inverted image of same size is obtained by a convex lens

• 3)

In which process heat is transferred directly from one molecule to other?

• 4)

Radio __________ is used in the treatment of skin diseases

• 5)

1 mole of any substance contains __________ molecules

#### 10th Standard Science English Medium Creative Important 7 Marks Questions - by Ganesh - Dharapuram - May 12, 2020 - View & Read

• 1)

A passenger of mass 72 kg is riding in a lift what is the apparent weight of a person in (i) descending with constant velocity (ii) ascending with constant acceleration 3 m/s2?

• 2)

A bullet of mass 50 g moving with a speed of 300 ms-1 is brought to rest in Is. Find the impulse and the force.

• 3)

A body of mass 20 kg is hung by a spring balance in a lift. What would be the weight when (i) The lift is ascending with an acceleration of 2 m/s2
(ii) The lift is descending with a same acceleration of 2 m/s2
(iii) The lift is descending with a constant velocity 2 ms-1
Given g = 10 m/s2

• 4)

A cricket ball of mass 100 g moving with a speed of 20 ms-1 is brought to rest by a player. Find the change in momentum of ball.

• 5)

Two bodies have masses in the ratio 2 : 3 when a force is applied on first body, it moves with an acceleration of 6 ms-2, How much acceleration will be the same force produce in the other body?

#### 10th Standard Science English Medium Book back Important 7 Marks Questions - by Ganesh - Dharapuram - May 12, 2020 - View & Read

• 1)

State and prove the law of conservation of linear momentum.

• 2)

Describe rocket propulsion.

• 3)

An object is placed at a distance 20cm from a convex lens of focal length 10cm. Find the image distance and nature of the image.

• 4)

Explain the construction and working of a 'Compound Microscope

• 5)

Derive the ideal gas equation.

#### 10th Standard Science English Medium Creative Important 4 Marks Questions - by Ganesh - Dharapuram - May 12, 2020 - View & Read

• 1)

What are the concepts prepared by Galileo?

• 2)

Give the application of torque.

• 3)

Give examples for Newton's third law.

• 4)

Derive the Relation between g and G?

• 5)

Discuss the apparent weight of a man in lift?

#### 10th Standard Science English Medium Book back Important 4 Marks Questions - by Ganesh - Dharapuram - May 12, 2020 - View & Read

• 1)

Two bodies have a mass ratio of 3:4 The force applied on the bigger mass produces an acceleration of 12 ms-2.What could be the acceleration of the other body, if the same force acts on it.

• 2)

A ball of mass 1 kg moving with a speed of 10 ms-1 rebounds after a perfect elastic collision with the floor. Calculate the change in linear momentum of the ball.

• 3)

A mechanic unscrew a nut by applying a force of 140 N with a spanner of length 40 cm. What should be the length of the spanner if a force of 40 N is applied to unscrew the same nut?

• 4)

Find the final temperature of a copper rod. Whose area of cross section changes from 10 m2 to 11 m2 due to heating. The copper rod is initially kept at 90 K. (Coefficient of superficial expansion is 0.0021 /K)

• 5)

Calculate the coefficient of cubical expansion of a zinc bar. Whose volume is increased 0.25 m3 from 0.3 m3 due to the change in its temperature of 50 K.

#### 10th Standard Science English Medium Creative Important 1 Marks Questions - by Ganesh - Dharapuram - May 11, 2020 - View & Read

• 1)

Physics that deals with the effect of force on bodies is

• 2)

The resistance of a body to change its state of motion is called

• 3)

A & B are two objects with masses 100 kg & 75 kg respectively, then _______

• 4)

If two equal forces acting along opposite direction is parallel to each other then they are called as

• 5)

The acceleration due to gravity varies on earth with

#### 10th Standard Science English Medium Book back Important 2 Marks Questions - by Ganesh - Dharapuram - May 11, 2020 - View & Read

• 1)

Define moment of a couple.

• 2)

State Newton’s second law.

• 3)

How does an astronaut float in a space shuttle?

• 4)

State Snell’s law.

• 5)

Differentiate convex lens and concave lens

#### 10th Standard Science English Medium Creative Important 2 Marks Questions - by Ganesh - Dharapuram - May 11, 2020 - View & Read

• 1)

What is meant by natural motion?

• 2)

Distinguish between balanced and unbalanced force.

• 3)

Write the convention rule of couple.

• 4)

Define 1 dyne.

• 5)

What is meant by Apparent weight?

#### 10th Standard Science English Medium Book back Important 1 Marks Questions - by Ganesh - Dharapuram - May 11, 2020 - View & Read

• 1)

The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg

• 2)

If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will

• 3)

To project the rockets which of the following principle(s) is /(are) required?

• 4)

The refractive index of four substances A, B, C and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in

• 5)

A small bulb is placed at the principal focus of a convex lens. When the bulb is switched on, the lens will produce

#### 10th Standard Science English Medium Model Question Paper - by Ganesh - Dharapuram - May 11, 2020 - View & Read

• 1)

According to the Newton's III law of motion, action & reaction

• 2)

If VB, VG, VR be the velocity of blue, green and red light respectively in a glass prism, then which of the following statement gives the correct relation?

• 3)

Thermal expansion atparticular temperature is less in

• 4)

The first nuclear reactor was built at  _________.

• 5)

The volume occupied by 1 mole of a diatomic gas at S.T.P is

#### 10th Standard Science English Medium Public Exam Model Question Paper July 2020 - by Ganesh - Dharapuram - May 11, 2020 - View & Read

• 1)

When you paddle a canoe, the canoe goes forward. This is an example of _______

• 2)

The eye defect ‘presbyopia’ can be corrected by

• 3)

The formula for conversion of temperature from Kelvin to Celsius is

• 4)

India's Nuclear Power Programme has ________ reactors in operation.

• 5)

Th e volume occupied by 4.4 g of CO2 at S.T.P

#### 10th Standard Science English Medium Public Exam Model Question Paper June 2020 - by Ganesh - Dharapuram - May 11, 2020 - View & Read

• 1)

The momentum of a heavy object at rest will be

• 2)

A convex lens forms a real, diminished point sized image at focus. Then the position of the object is at

• 3)

SI unit of heat is

• 4)

In molecular biology, radioisotope are used in ________ surgical instruments.

• 5)

Th e volume occupied by 4.4 g of CO2 at S.T.P

#### 10th Standard Science Important Questions Bookback and Creative - by Science English Medium - New syllabus 2019 - May 08, 2020 - View & Read

• 1)

Inertia of a body depends on

• 2)

To project the rockets which of the following principle(s) is /(are) required?

• 3)

The acceleration in a body is due to

• 4)

Impulse is equal to

• 5)

A man of mass 100 kg has a weight of ___________ at the surface of the Earth

#### 10th Standard Science English Medium Important Questions - by Science English Medium - New syllabus 2019 - May 08, 2020 - View & Read

• 1)

Inertia of a body depends on

• 2)

The unit of ‘g’ is m s-2. It can be also expressed as

• 3)

One kilogram force equals to

• 4)

The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg

• 5)

If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will

#### 10th Standard Science English Medium Model Question Paper - by Science English Medium - New syllabus 2019 - May 08, 2020 - View & Read

• 1)

Inertia of a body depends on

• 2)

Impulse is equals to

• 3)

The unit of ‘g’ is m s-2. It can be also expressed as

• 4)

One kilogram force equals to

• 5)

The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg

#### 10th Standard Science One Mark Impatant Questions Book Back and Creative -2020 - by Ganesh - Dharapuram - Mar 19, 2020 - View & Read

• 1)

Inertia of a body depends on

• 2)

The unit of ‘g’ is m s-2. It can be also expressed as

• 3)

The physical quantity which is the measure of inertia is _______

• 4)

You're riding a bike when suddenly you hit a large rock. The bike stops moving but you fly over the handle - bars. This is an example of ______

• 5)

Magnification of a convex lens is

#### 10th Standard Science English Medium All Chapter Book Back and Creative One Marks Questions 2020 - by Ganesh - Dharapuram - Mar 12, 2020 - View & Read

• 1)

Inertia of a body depends on

• 2)

Impulse is equals to

• 3)

The act of cleaning a carpet by heating it with a stick is an example for inertia of

• 4)

What would happen, if the force of gravity disappears suddenly on earth?

• 5)

The eye defect ‘presbyopia’ can be corrected by

#### 10th Standard Science English Medium All Chapter Book Back and Creative Two Marks Questions 2020 - by Ganesh - Dharapuram - Mar 12, 2020 - View & Read

• 1)

1. CPU -
2. DOC -
3. JPG -
4. PPTs -
5. MIT -
6. CSS -
7. MP3 -
8. PDF -
9. DLL -
10.PNG -
11. XLS -
12. PSD -

• 2)

Differentiate mass and weight.

• 3)

Distinguish between balanced and unbalanced force.

• 4)

Why are traffic signals red in colour?

• 5)

Why is a normal eye not able to see clearly the objects placed closer than 25 cm?

#### 10th Standard Science English Medium All Chapter Book Back and Creative Four Marks Questions 2020 - by Ganesh - Dharapuram - Mar 12, 2020 - View & Read

• 1)

Two bodies have a mass ratio of 3:4 The force applied on the bigger mass produces an acceleration of 12 ms-2.What could be the acceleration of the other body, if the same force acts on it.

• 2)

Give the application of torque.

• 3)

Explain the Sign Conventions of lenses.

• 4)

Find the final temperature of a copper rod. Whose area of cross section changes from 10 m2 to 11 m2 due to heating. The copper rod is initially kept at 90 K. (Coefficient of superficial expansion is 0.0021 /K)

• 5)

With an illustration, explain the method of Calculation for arial expansion of an object.

#### 10th Standard Science English Medium All Chapter Book Back and Creative Seven Marks Questions 2020 - by Ganesh - Dharapuram - Mar 12, 2020 - View & Read

• 1)

1. CPU -
2. DOC -
3. JPG -
4. PPTs -
5. MIT -
6. CSS -
7. MP3 -
8. PDF -
9. DLL -
10.PNG -
11. XLS -
12. PSD -

• 2)

What are the phases of menstrual cycle? Indicate the changes in the ovary and uterus.

• 3)

The sex of the new born child is a matter of chance and neither of the parents may be considered responsible for it. What would be the possible fusion of gametes to determine the sex of the child?

• 4)

Arun was playing in the garden. Suddenly he saw a dragon fly sitting on a plant. He observed the wings of it. He thought it looked similar to a wing of a crow. Is he correct? Give reason for your answer.

• 5)

A breeder wishes to incorporate desirable characters into the crop plants. Prepare a list of characters he will incorporate

#### 10th standard science Pre Public Model Question paper ( biology )-2019 -2020 - by N.Sriramakrishnan - Feb 26, 2020 - View & Read

• 1)

The endarch condition is the characteristic feature of

• 2)

The xylem and phloem arranged side by side on same radius is called _________

• 3)

Which is formed during anaerobic respiration

• 4)

Mitochondria was discovered by ___________

• 5)

The segments of leech are known as

#### 10th Standard science creative test model - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

______ deals with the bodies which are at rest under the action of forces.

• 2)

For air, the refractive index is

• 3)

The amount of heat energy required to rise the temperature of 1gram of water through 10C is _____

• 4)

Which of the following produces large joule heating effect?

• 5)

A sound wave passes through gold rod and comes into the surrounding air. What is the relation between original wavelength A and new wavelength λ'?

#### 10th Standard Science All Chapter Important Creative Questions-II-2020 - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

A force is applied by direct physical contact between two bodies is

• 2)

_____ determines speed of light in a medium.

• 3)

In which process heat is transferred directly from one molecule to other?

• 4)

Why battery is used in the circuit?

• 5)

Ultrasound waves compared to audible sound waves have.

#### 10th Standard Science All Chapter Important Creative  Questions-II- 2019-2020 - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

Newton's law of gravitation applies to

• 2)

As compare to single lens, compound microscope gives ______ magnification

• 3)

SI unit of temperature is ______

• 4)

Which options show the correct direction of current?

• 5)

What does it mean when a wave's amplitude increases?

#### 10th Standard Science All Chapter Creative Questions-II-2020 - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

When you paddle a canoe, the canoe goes forward. This is an example of _______

• 2)

An object is placed at 12 cm from a convex lens whose focal length is 10 cm. The image must

• 3)

Thermal expansion atparticular temperature is less in

• 4)

A 110 W, 220 V bulb draws a current.

• 5)

Ultrasound waves compared to audible sound waves have.

#### 10th Standard Science All Chapter Creative Questions-II-2019-2020 - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

A water tanker filled up to $\frac{2}{3}$ of its height is moving with a uniform speed, on sudden application of the brake, the water in the tank would

• 2)

Convex lenses are used in

• 3)

Temperature is a property which determines

• 4)

In which one of the following heating effect the current is undesirable?

• 5)

Loudness of sound varies directly with vibrating body's

#### 10th Standard Science All Chapter Important Creative  Questions-I- 2020 - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

The motion of falling bodies towards earth is due to

• 2)

Device used to see very very small object is ____

• 3)

Temperature is a property which determines

• 4)

The resistance of a conductor is inversely proportional to its _______.

• 5)

A source emits a frequency of 1 kHz is moving toward a rest listener with a speed of 0.9 V, where V is the speed of sound wave. The frequency heard by the listener is ________.

#### 10th Standard Science All Chapter Important Creative  Questions-I- 2019-2020 - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

If lift is accelerated in the upward direction, then the apparent weight of a body is

• 2)

The point at which the principal axis meets the surface of the lens is

• 3)

SI unit of temperature is

• 4)

A complete electric circuit is called_____ circuit.

• 5)

Sound travels with a velocity of ____________ in dry air

#### 10th Standard Science All Chapter Creative Questions-I-2020 - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

The value of g

• 2)

Lens formula is

• 3)

The amount of heat energy required to rise the temperature of 1gram of water through 10C is _____

• 4)

A small wire presents inside the bulb is called

• 5)

The pitch of sound depends on

#### 10th Standard Science All Chapter Creative Questions-I-2019-2020 - by Ganesh - Dharapuram - Feb 07, 2020 - View & Read

• 1)

The magnitude of the weight is expressed in the units of

• 2)

An object is placed at 12 cm from a convex lens whose focal length is 10 cm. The image must

• 3)

The degree of hotness or coldness of a body is called _____

• 4)

The S1 unit of power is

• 5)

Bats deflect from the obstacles in their path by receiving the reflected _______ waves.

#### 10th Science - Full Portion Seven Marks Question Paper - by 8682895000 - Jan 20, 2020 - View & Read

• 1)

Deduce the equation of a force using Newton’s second law of motion.

• 2)

Explain the experiment of measuring the real and apparent expansion of a liquid with a neat diagram.

• 3)

Explain about domestic electric circuits. (circuit diagram not required)

• 4)

Suppose that a sound wave and a light wave have the same frequency, then which one has a longer wavelength?
a) Sound b) Light c) both a and b d) data not sufficient

• 5)

Name the acid that renders aluminium passive. Why?

#### 10th Science - Full Portion Four Marks Question Paper - by 8682895000 - Jan 20, 2020 - View & Read

• 1)

Define and describe thermal expansion.

• 2)

A person who is sitting at a distance of 400 m from a source of sound is listening to a sound of 600 Hz. Find the time period between successive compressions from the source?

• 3)

When you place your ear on rails, it allows you to hear the approach of a train long before you can hear the sound of train in the air. How?

• 4)

State Soddy and Fajan’s displacement law.

• 5)

Calculate the number of moles in
i) 27g of Al ii) 1.51 × 1023 molecules of NH4Cl

#### 10th Science - Full Portion Two Marks Question Paper - by 8682895000 - Jan 20, 2020 - View & Read

• 1)

Draw a ray diagram to show the image formed by a convex lens when the object is placed between F and 2F.

• 2)

Define one calorie.

• 3)

What is the minimum distance needed for an echo?

• 4)

Write the name of the electromagnetic radiation which is emitted during a natural radioactivity.

• 5)

State two conditions necessary for rusting of iron.

#### 10th Science - Revision Model Question Paper 2 - by Ganesh - Dharapuram - Jan 17, 2020 - View & Read

• 1)

The gravitational force between two objects becomes _______ when the masses of both objects are halved without altering the distance between them.

• 2)

A small bulb is placed at the principal focus of a convex lens. When the bulb is switched on, the lens will produce

• 3)

Absolute scale is also called as ______

• 4)

The main source of stellar energy is
(i) fission reactors
(ii) fusion reaction
(iii) chemical reaction
(iv) thermonuclear reactions

• 5)

Which of the following has the smallest mass?

#### 10th Science - Public Exam Model Question Paper 2019 - 2020 - by Ganesh - Dharapuram - Jan 17, 2020 - View & Read

• 1)

A water tanker filled up to $\frac{2}{3}$ of its height is moving with a uniform speed, on sudden application of the brake, the water in the tank would

• 2)

In a myopic eye, the image of the object is formed

• 3)

Thermal conduction in metal is due to

• 4)

Radio ________ is used to locate brain tumors.

• 5)

The volume occupied by 1 mole of a diatomic gas at S.T.P is

#### 10th Science - Visual Communication Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Which software is used to create animation?

• 2)

All files are stored in the _____________

• 3)

Which is used to build scripts?

• 4)

Which is used to edit programs?

• 5)

Where you will create category of blocks?

#### 10th Science - Environmental Management Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

The system of National parks and wild life sanctuaries was established in________

• 2)

There are______ biosphere reserves in India.

• 3)

The first National park to be established in India was________

• 4)

The project for conservation of_______was launched in 1976

• 5)

India is the__________largest consumer of crude oil.

#### 10th Science - Breeding and Biotechnology Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

The International rice research institute is located at___________.

• 2)

Blood dotting factors produced by biotechnology helps patients suffering from__________.

• 3)

In human beings, _________ of the DNA base sequences are the same and this is called as bulk genomic DNA.

• 4)

________ is father of "Indian Green Revolution"

• 5)

_________ is a hybrid of wheat and rye

#### 10th Science - Origin and Evolution of Life Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Biogenesis was speculated by _________.

• 2)

Ancon sheep is an example of _________.

• 3)

The Father of Paleobotany / Founder of Modern Paleobotany is _______

• 4)

The process of formation of fossils in the rocks is called ________.

• 5)

The degenerated wing of ___________ is an example for organ of disuse.

#### 10th Science - Heredity Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

The haploid condition in a human cell refers to________ chromosomes

• 2)

______is not a nitrogenous base.

• 3)

Choose the correct pair

• 4)

Franklin and Wilkin were awarded nobel prize for_______

• 5)

Down's syndrome is a case of___________

#### 10th Science - Reproduction in Plants and Animals Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Pollination with the help of insects like honey bees, flies are called_________

• 2)

________is a disc shaped structure.

• 3)

Milk production from alveoli of mammary gland is stimulated by_______

• 4)

Theejection of milk is stimulated byposterior pituitary hormone called_____

• 5)

Breaking of the filament into many fragments is called_____________

#### 10th Science - Plant and Animal Hormones Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Dwarfism is caused by decreased secretion of ______ in children.

• 2)

Goitre is caused due to the inadequate supply of _____ in our diet.

• 3)

Thyroid gland requires _____ of iodine everyday for the production of thyroxine.

• 4)

______ is the hormone secreted by Thymus.

• 5)

______ first crystallised thyroxine hormone.

#### 10th Science - Nervous System Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Sneezing, yawning etc are examples of _______

• 2)

______ is not a characteristic of neuron.

• 3)

The axons may be covered by a protective sheath called ______

• 4)

______ acts as a insulator.

• 5)

Each neuron can transmit ______ nerve impulses per second.

#### 10th Science - Health and Diseases Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

____________ is not a method of treatment for cancer.

• 2)

AIDS affects the ___________ system.

• 3)

World AIDS Day is observed on ______________

• 4)

Obesity is not a risk factor for ___________

• 5)

Excess hunger is called ______________

#### 10th Science - Transportation in Plants Circulation in Animals Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

The_______ are also called polymorpho nuclear leucocytes

• 2)

The _________are the largest ofleucocytes

• 3)

Transpiration does not___________

• 4)

Identify the wrong statement

• 5)

Water from soil enters the root hairs due to___________

#### 10th Science - Structural Organisation of Animals Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

In leeches there are ________pairs of nephridia.

• 2)

The number of cranial and spinal nerves in rabbit are_______ respectively

• 3)

The_______ glands are modified glands of the skin

• 4)

PNSis formed of _______pairs of cranial nerves in Rabbit

• 5)

The third Ventricle in brain of Rabbit lives in______

#### 10th Science - Plant Anatomy and Plant Physiology Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

______________ is the outermost layer of the root.

• 2)

Name the tissue present between the upper and lower epidermis.

• 3)

Who discovered light dependent photossynthesis?

• 4)

The inner mitochondrial membrane gives rise to finger like projections called ____________

• 5)

Leucoplasts are __________ plastids.

#### 10th Science - Carbon and Its Compounds Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Ethene is an ___________

• 2)

The enzymes present in yeast is / are _____________

• 3)

Rectified spirit contains

• 4)

Ethanolis used as ______________

• 5)

Ethanoic acid turns

#### 10th Science - Types of Chemical Reactions Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Pick out
Compound + element ⟶ compound type of combination reaction

• 2)

Pick out a chemical reaction which is not feasible

• 3)

Pick out the metal that displaces hydrogen from hydrochloric acid.

• 4)

Which among the following is not a balanced equation?

• 5)

Acids have pH

#### 10th Science - Solutions Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Quick lime is dissolved in water is a ______________ process.

• 2)

Example for solid in solid ___________

• 3)

The number of components in a binary solution is ______________

• 4)

In which of the following solutions, both solute and solvent are solids?

• 5)

Solubility of KNO3 ____________ with the increases in temperature.

#### 10th Science - Periodic Classification of Elements Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Noble gases belong to group ___________

• 2)

Arrange the following in the increasing order of the size. Cl-, Cl, Cl+

• 3)

Electronegativity values are based on ______________

• 4)

Slag is.

• 5)

The chemical formula of sodium meta aluminate is ___________

#### 10th Science - Atoms and Molecules Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

An atom of an element has 13 electrons and mass number 27. The nucleus of this atom contains ____________ neutrons.

• 2)

The relative atomic masses of many elements are not whole number because

• 3)

The atomicity of Chlorine is

• 4)

The total number of electrons present in 16 g of methane gas is

• 5)

What mass of hydrogen and oxygen will be produced on complete electrolysis of 18 g of water

#### 10th Science - Nuclear Physics Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Fusion reaction takes place at high temp.

• 2)

Atomic nucleus was discovered by _______

• 3)

Henry Becquerel discovered ________ in 1896

• 4)

Elements having atomic number greater than ________ are radioactive.

• 5)

૪ rays are ________ in charge.

#### 10th Science - Acoustics Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Distance between two consecutive compressions is

• 2)

Sound can travel in

• 3)

Sound travels with a velocity of ____________ in dry air

• 4)

Dogs can receive sound upto _____ kHz.

• 5)

When sound travels through air, the air particles.

#### 10th Science - Electricity Model Question Paper - by Ganesh - Dharapuram - Dec 06, 2019 - View & Read

• 1)

Give the name of components which is designed to oppose the flow of current.

• 2)

The resistance of a conductor directly proportional to

• 3)

The resistance of a conductor is inversely proportional to its _______.

• 4)

What happens when ammeter connected in parallel?

• 5)

If resistance of a wire is r ohms and wire is stretched to double its length, then what is its resistance?

#### 10th Science - Thermal Physics Important Questions - by Ganesh - Dharapuram - Nov 29, 2019 - View & Read

• 1)

The value of universal gas constant

• 2)

Temperature is the average ______ of the molecules of a substance

• 3)

Linear expansion is the change in _____ when object is heated or cooled.

• 4)

If the atoms or molecules of a gas do not interact with each other, then the gas is said to be an ____

• 5)

Thermal conduction in metal is due to

#### 10th Science Optics Model Question Paper - by Ganesh - Dharapuram - Nov 29, 2019 - View & Read

• 1)

In a myopic eye, the image of the object is formed

• 2)

The eye defect ‘presbyopia’ can be corrected by

• 3)

Which of the following lens would you prefer to use while reading small letters found in a dictionary?

• 4)

Violet and red light ______ wavelengths.

• 5)

We can see objects because of

#### 10th Science Laws of Motion Model Question Paper - by Ganesh - Dharapuram - Nov 29, 2019 - View & Read

• 1)

The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg

• 2)

If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will

• 3)

______ deals with the bodies which are at rest under the action of forces.

• 4)

The resistance of a body to change its direction of motion is

• 5)

Mixing sugar in a glass of milk using a spoon is ______

#### 10th Science Half Yearly Model Question Paper 2019 - by Ganesh - Dharapuram - Nov 13, 2019 - View & Read

• 1)

When an object undergoes acceleration

• 2)

Velocity of sound in a gaseous medium is 330 m s-1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is

• 3)

_____ is a relative periodic property

• 4)

Solubility of NaCl in 100 ml water is 36 g. If 25 g of salt is dissolved in 100 ml of water how much more salt is required for saturation _____________

• 5)

Which among the following factors affect the rate of a reaction?

#### 10th Science - Visual Communication Model Question Paper - by Indumathi - Tuticorin - Nov 01, 2019 - View & Read

• 1)

Which software is used to create animation?

• 2)

All files are stored in the _____________

• 3)

Which is used to edit programs?

• 4)

Where you will create category of blocks?

• 5)

Multiplefilesarestoredina___________

#### 10th Standard Science - Environmental Management Model Question Paper - by Indumathi - Tuticorin - Nov 01, 2019 - View & Read

• 1)

What are the steps will you adopt for better waste management?

• 2)

Soil erosion can be prevented by

• 3)

A renewable source of energy is

• 4)

An inexhaustible resources is

• 5)

A cheap, conventional, commercial and inexhaustible source of energy is

#### 10th Standard Science - Health and Diseases Model Question Paper - by Indumathi - Tuticorin - Nov 01, 2019 - View & Read

• 1)

World 'No Tobacco Day' is observed on

• 2)

Which type of cancer affects lymph nodes and spleen?

• 3)

Cancer of the epithelial cells is called

• 4)

Polyphagia is a condition seen in

• 5)

Where does alcohol effect immediately after drinking?

#### 10th Standard Science - Breeding and Biotechnology Model Question Paper - by Indumathi - Tuticorin - Oct 31, 2019 - View & Read

• 1)

Pusa Komal is a disease resistant variety of _________.

• 2)

Himgiri developed by hybridisation and selection for disease resistance against rust pathogens is a variety of _______.

• 3)

rDNA is a

• 4)

Organisms with modified endogenous gene or a foregin gene are also known as

• 5)

Dr. Norman received the Nobel peace prize in_________

#### 10th Standard Science - Origin and Evolution of Life Model Question Paper - by Indumathi - Tuticorin - Oct 31, 2019 - View & Read

• 1)

Biogenetic law states that ___________

• 2)

Paleontologists deal with

• 3)

The term Ethnobotany was coined by

• 4)

________ is not an example of vestigial organ.

• 5)

_______ is the only planet in the Goldilock. zone.

#### 10th Standard Science - Heredity Model Question Paper - by Indumathi - Tuticorin - Oct 31, 2019 - View & Read

• 1)

9 : 3 : 3 : 1 ratio is due to

• 2)

The region of the chromosome where the spindle fibres get attached during cell division

• 3)

The centromere is found at the centre of the ________________ chromosome

• 4)

The _____________ units form the backbone of the DNA.

• 5)

Okasaki fragments are joined together by ___________________.

#### 10th Science - Reproduction in Plants and Animals Model Question Paper - by Indumathi - Tuticorin - Oct 31, 2019 - View & Read

• 1)

The plant which propagates with the help of its leaves is ___________

• 2)

What is true of gametes?

• 3)

Estrogen is secreted by

• 4)

Which one of the following is an IUCD?

• 5)

Each stamen consists of a small bag like structure called_______

#### 10th Standard Science - Term II Model Question Paper - by Indumathi - Tuticorin - Oct 29, 2019 - View & Read

• 1)

Inertia of a body depends on

• 2)

If a substance is heated or cooled, the change in mass of that substance is

• 3)

SI unit of resistance is

• 4)

• 5)

Which of the following is a triatomic molecule?

#### 10th Standard Science - Plant and Animal Hormones Model Question Paper - by Indumathi - Tuticorin - Oct 25, 2019 - View & Read

• 1)

The hormone which has positive effect on apical dominance is:

• 2)

Which one of the following hormones is naturally not found in plants.

• 3)

Avena coleoptile test was conducted by

• 4)

To increase the sugar production in sugarcanes they are sprayed with _______

• 5)

LH is secreted by

#### 10th Science - Nervous System Model Question Paper - by Indumathi - Tuticorin - Oct 25, 2019 - View & Read

• 1)

Bipolar neurons are found in

• 2)

Site for processing of vision, hearing, memory, speech, intelligence and thought is

• 3)

In reflex action, the reflex arc is formed by

• 4)

Dendrites transmit impulse ______ cell body and axon transmit impulse ______ cell body.

• 5)

The outer most of the three cranial meninges is

#### 10th Standard Science - Carbon and Its Compounds Model Question Paper - by Indumathi - Tuticorin - Oct 19, 2019 - View & Read

• 1)

The molecular formula of an open chain organic compound is C3H6. The class of the compound is

• 2)

Rectified spirit is an aqueous solution which contains about _______ of ethanol

• 3)

TFM in soaps represents ___________ content in soap

• 4)

Cyclobutane is an example of ______________ compounds.

• 5)

The enzymes present in yeast is / are _____________

#### 10th Standard Science - Plant Anatomy and Plant Physiology Model Question Paper - by Indumathi - Tuticorin - Oct 19, 2019 - View & Read

• 1)

Casparian strips are present in the _____________ of the root.

• 2)

The endarch condition is the characteristic feature of

• 3)

Oxygen is produced at what point during photosynthesis ?

• 4)

Amphivasal bundle belongs to ___________ type of vascular, bundle.

• 5)

The ___________ is called starch sheath in a dicot stem.

#### 10th Standard Science - Structural Organisation of Animals Model Question Paper - by Indumathi - Tuticorin - Oct 19, 2019 - View & Read

• 1)

In leech locomotion is performed by

• 2)

Mammals are ______________ animals.

• 3)

The animals which give birth to young ones are

• 4)

Leeches have ___________

• 5)

In leeches sperms are stored in

#### 10th Standard Science - Transportation in Plants Circulation in Animals Model Question Paper - by Indumathi - Tuticorin - Oct 19, 2019 - View & Read

• 1)

Water which is absorbed by roots is transported to aerial parts of the plant through

• 2)

The wall of human heart is made of

• 3)

Which one of the following regarding blood composition is correct

• 4)

The _________are the largest ofleucocytes

• 5)

The life span of platelets is_________

#### 10th Standard Science - Environmental Management Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

Write a note on biogas.

• 2)

Write a note an solar cells.

• 3)

Write a note an wind energy

• 4)

Explain the waste water treatment process

• 5)

Afamily has 3 three cars and can afford to buy fuel. They prefer to go out independently. Is it right to suggest car pooling for such people. Justify.

#### 10th Standard Science - Health and Diseases Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

Write a note an smoking hazards and effects of Tobacco.

• 2)

Write a note an prevention and control of AIDS.

• 3)

Write a note on Obesity.

• 4)

What is diabetes? Explain the types.

• 5)

Ramu studies in a school and his friends are discussing about drugs. They force him to use drugs and threaten to avoid him / harm him if he refuses. What should Ramu do?

#### 10th Science - Breeding and Biotechnology Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

Write a note an selection.

• 2)

Write a essay on polyploidy breeding.

• 3)

Why are Genetically modified organisms produced? Explain the purpose and advantages.

• 4)

Plants seeds got from other countries are tested in plant quarantine. Reason out.

• 5)

A farmer has lot of banana trees in his form. He wishes to go in for selection to improve the crop. Which method can he adopt in banana?

#### 10th Science - Origin and Evolution of Life Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

Why is Archaeopteryx considered to be a connecting link?

• 2)

Write a note on evidences from Morphology and Anatomy in favour of Evolution.

• 3)

Explain Use and Disuse theory.

• 4)

Two kittens (Leo and Joe) from the same mother were separated and sent to different habitual conditions. Leo was sent to a high mountain wild region and Joe was domesticated and lived in a city. After a good 5 years) it was found that Leo was aggressive and built strong with hunting skills. Leo looked tall with strong legs and muscled structure) whereas Joe was a well mannered cat looked puffy with soft legs.
(i) Do you think habitual condition impact animal characters?
(ii) What acquired characters does Leo inherit?
(iii) Is it true but Leo's offspring would be a hunter?

• 5)

X is the oldest fossil bird. The animal X became extinct a long time ago. But the study of fossils of
X tells us that it had features like birds and some like reptiles.
(i) Identify 'X'?
(ii) Name one feature in which 'X' resembled birds.
(iii) Name one feature in which 'X' resembled reptiles.

#### 10th Science - Heredity Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

What are Okazaki fragments?

• 2)

How are chromosomes classified based on the position of centromere?

• 3)

Write a note on DNA replication.

• 4)

Write a note on mutation

• 5)

Mala had a huge scar on her cheek after she met with fire accident during her college days. She is worried ifher baby would inherit the scar she had acquired. She clarified with her doctor, she need not worry about it, as her scar is an acquired trait.
(i) What are acquired traits?
(ii) How is it different from inherited traits?

#### 10th Science - Reproduction in Plants and Animals Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

Write a note on agents of pollination.

• 2)

Explain the process of fertilization in plants?

• 3)

Government has brought in lot of measures to focus on health of a pregnant woman. Answer the following questions based on the same
(a) Name the tissue responsible for transfer of nutrients from mother to the offspring during pregnancy.
(b) Suggest two measures to maintain a woman's health during pregnancy.

• 4)

Arun and Ram were good friends. But Ram slowly started loosing interest in studies as they grew up. The teacher found out that Ram had three siblings and their parents could not give him good food or personal care. What value does this episode give us.

• 5)

My friend Manisha received a marriage  proposal from a boy living abroad. Before they met and finalised the wedding, Manisha ~ requested her parents to get the boy's blood  test report. E
(i) Do you think blood test report is i necessary for both boy & girl?
(ii) Do you think, blood test report is not " necessary for the boy living in India?

#### 10th Science - Plant and Animal Hormones Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

Explain the physiological effects of Auxins.

• 2)

(a) Describe the structure of thyroid gland?
(b) List the functions of thyroid hormones.

• 3)

Write a note on Thyroid Dysfunctions.

• 4)

Describe the role of pancreas in maintenance of blood sugarlevel.

• 5)

In botanical gardens and tea gardens the gardeners trim the plants regularly so that they remain bushy. Write the scientific explanation of this practice.

#### 10th Science - Nervous System Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

Tabulate the different parts of the brain and their functions.

• 2)

List the function of cerebrospinal fluid.

• 3)

Differentiate simple reflexes and conditional reflexes.

• 4)

Rani fell from her bike and had a head injury. She was hospitalized and discharged later. What do you think she could have done to save herself from this accident.

• 5)

'A' contains a cerebrospinal fluid filled cavity known as 'B'. How many nerves are produced from A.
(i) What isA?
(ii) What is 'B'?

#### 10th Science - Transportation in Plants Circulation in Animals Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 15, 2019 - View & Read

• 1)

What would happen to the leaves of a plant that transpires more water than its absorption in the roots?

• 2)

Describe the structure and working of the human heart.

• 3)

Why is the circulation in man referred to as double circulation?

• 4)

Write a note an ABO blood grouping.

• 5)

List the difference between RBC and WBC

#### 10th Standard Science - Types of Chemical Reactions Model Question Paper - by Indumathi - Tuticorin - Oct 12, 2019 - View & Read

• 1)

H2(g) + Cl29(g) → 2HCl(g) is a

• 2)

Photolysis is a decomposition reaction caused by

• 3)

The reaction between carbon and oxygen is represented by C(s) + O2(g) → CO2(g) + Heat. In which of the type(s), the above reaction can be classified?
(i) Combination Reaction
(ii) Combustion Reaction
(iii)Decomposition Reaction
(iv) Irreversible Reaction

• 4)

A single displacement reaction is represented by X(s) + 2HCl(aq) → XCl2(aq) + H2(g). Which of the following(s) could be X. (i) Zn (ii) Ag (iii) Cu (iv) Mg. Choose the best pair.

• 5)

Which of the following is not an“element + element → compound” type reaction?

#### 10th Standard Science - Solutions Model Question Paper - by Indumathi - Tuticorin - Oct 12, 2019 - View & Read

• 1)

A solution is a __________ mixture.

• 2)

The number of components in a binary solution is _____________

• 3)

A 25% alcohol solution means

• 4)

Which of the following is hygroscopic in nature?

• 5)

Sugar and copper sulphate crystals are dissolved in water. The solution is called as

#### 10th Standard Science - Plant Anatomy and Plant Physiology Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

Give an account on vascular bundle of dicot stem.

• 2)

Write a short note on mesophyll.

• 3)

Draw and label the structure of oxysomes.

• 4)

Name the three basic tissues system in flowering plants.

• 5)

What is photosynthesis and where in a cell does it occur?

#### 10th Standard Science - Carbon and Its Compounds Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

What is called homologous series? Give any three of its characteristics?

• 2)

Arrive at, systematically, the IUPAC name of the compound: CH3–CH2–CH2–OH.

• 3)

How is ethanol manufactured from sugarcane?

• 4)

Give the balanced chemical equation of the following reactions:
(i) Neutralization of NaOH with ethanoic acid.
(ii) Evolution of carbon dioxide by the action of ethanoic acid with NaHCO3.
(iii) Oxidation of ethanol by acidified potassium dichromate.
(iv) Combustion of ethanol.

• 5)

Explain the mechanism of cleansing action of soap.

#### 10th Science - Atoms and Molecules Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

N2 + 3 H2 → 2 NH3
(The atomic mass of nitrogen is 14, and that of hydrogen is 1)
1 mole of nitrogen (_______g) +
3 moles of hydrogen ( _________ g) →
2 moles of ammonia ( _________ g)

• 2)

Calculate the % of oxygen in Al2(SO4)3. (Atomic mass: Al-12, O-16, S -32)

• 3)

Calculate the % relative abundance of B -10 and B -11, if its average atomic mass is 10.804 amu.

• 4)

Give the applications of Avogadro's hypothesis.

• 5)

How will you determine the atomicity of gases using Avogadro's hypothesis?

#### 10th Science - Types of Chemical Reactions Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

What are called thermolysis reactions?

• 2)

Explain the types of double displacement reactions with examples.

• 3)

Explain the factors influencing the rate of a reaction

• 4)

How does pH play an important role in everyday life?

• 5)

What is a chemical equilibrium? What are its characteristics?

#### 10th Science - Periodic Classification of Elements Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

a) State the reason for addition of caustic alkali to bauxite ore during purification of bauxite.
b) Along with cryolite and alumina, another substance is added to the electrolyte mixture. Name the substance and give one reason for the addition

• 2)

The electronic configuration of metal A is 2,8,18,1.
The metal A when exposed to air and moisture forms B a green layered compound. A with con. H2SO4 forms C and D along with water. D is a gaseous compound. Find A,B,C and D.

• 3)

Explain smelting process

• 4)

Explain the salient features of periods in the modern periodic table.

• 5)

Explain the salient features of groups in the modern periodic table.

#### 10th Standard Science - Structural Organisation of Animals Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

Why are the rings of cartilages found in trachea of rabbit?

• 2)

List out the parasitic adaptations in leech.

• 3)

Leeches do not have secretion of digestive juices and enzymes -Why ?

• 4)

How is the digestive system of rabbit suited for herbivorous mode of feeding?

• 5)

Explain the Digestive System of Rabbit

#### 10th Standard Science - Nuclear Physics Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

State Soddy and Fajan’s displacement law.

• 2)

Explain the principle & structure of atom bomb.

• 3)

Explain the uses of radio isotopes in medicine field?

• 4)

Distinguish between Nuclear fission and nuclear fusion.

• 5)

What are the precautions to be taken by people working in radiation labs?

#### 10th Science - Thermal Physics Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

Define and describe thermal expansion.

• 2)

With an illustration, explain the method of Calculation for linear expansion of an object.

• 3)

With an illustration, explain the method of Calculation for arial expansion of an object.

• 4)

With an illustration, explain the method of Calculation for cubical expansion of an object.

• 5)

State and explain Boyle's law.

#### 10th Science - Solutions Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

Write notes on
i) saturated solution
ii) unsaturated solution

• 2)

Write notes on various factors affecting solubility

• 3)

a) What happens when MgSO4.7H2O is heated? Write the appropriate equation
b) Define solubility

• 4)

A solution is prepared by dissolving 45 g of sugar in 180 g of water. Calculate the mass percentage of solute.

• 5)

3.5 litres of ethanol is present in 15 litres of aqueous solution of ethanol. Calculate volume percent of ethanol solution.

#### 10th Science - Acoustics Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 10, 2019 - View & Read

• 1)

What are the categories of sound waves based on their frequencies?

• 2)

How will you determine the velocity of sound by echo method?

• 3)

write the difference between the sound and light waves.

• 4)

Explain the working and use of SONAR?

• 5)

What are the various possibilities of relative motion between source and listener?

#### 10th Standard Science - Nuclear Physics Model Question Paper - by Indumathi - Tuticorin - Oct 04, 2019 - View & Read

• 1)

• 2)

____________ isotope is used for the treatment of cancer.

• 3)

Proton - Proton chain reaction is an example of__________

• 4)

Kamini reactor is located at __________

• 5)

The explosion of the atomic bomb takes place due to

#### 10th Standard Science - Acoustics Model Question Paper - by Indumathi - Tuticorin - Oct 04, 2019 - View & Read

• 1)

When a sound wave travels through air, the air particles

• 2)

The frequency, which is audible to the human ear is

• 3)

The velocity of sound in air at a particular temperature is 330 m s-1. What will be its value when temperature is doubled and the pressure is halved?

• 4)

If a sound wave travels with a frequency of 1.25 x 104 Hz 344 ms-1, the wavelength will be

• 5)

Velocity of sound in the atmosphere of a planet is 500 m s-1. The minimum distance between the sources of sound and the obstacle to hear the echo, should be

#### 10th Science - Thermal Physics Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 03, 2019 - View & Read

• 1)

Define electric potential and potential difference.

• 2)

State Ohm’s law.

• 3)

Distinguish between the resistivity and conductivity of a conductor.

• 4)

A 100 watt electric bulb is used for 5 hours daily and four 60 watt bulbs are used for 5 hours daily. Calculate the energy consumed (in kWh) in the month of January.

• 5)

A piece of wire having a resistance R is cut into five equal parts.
a) How will the resistance of each part of the wire change compared with the original resistance?
b) If the five parts of the wire are placed in parallel, how will the resistance of the combination change?
c) What will be ratio of the effective resistance in series connection to that of the parallel connection?

#### 10th Science - Optics Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 03, 2019 - View & Read

• 1)

State the laws of refraction.

• 2)

Explain Raman Scattering.

• 3)

Write the sign convention for lenses.

• 4)

Explain the types of Telescope.

• 5)

Explain the refraction of light through a glass prism.

#### 10th Science - Laws of Motion Four and Seven Marks Questions - by Ganesh - Dharapuram - Oct 03, 2019 - View & Read

• 1)

What are the concepts prepared by Galileo?

• 2)

Give the application of torque.

• 3)

Give examples for Newton's third law.

• 4)

Derive the Relation between g and G?

• 5)

Discuss the apparent weight of a man in lift?

#### 10th Standard Science - Electricity Model Question Paper - by Indumathi - Tuticorin - Sep 30, 2019 - View & Read

• 1)

Which of the following is correct?

• 2)

Kilowatt hour is the unit of

• 3)

The S1 unit of power is

• 4)

The resistance of material depends on.

• 5)

The resistance of a conductor directly proportional to

#### 10th Standard Science - Thermal Physics Model Question Paper - by Indumathi - Tuticorin - Sep 30, 2019 - View & Read

• 1)

The value of universal gas constant

• 2)

If a substance is heated or cooled, the linear expansion occurs along the axis of

• 3)

Which of the following has the fastest process of heat transfer?

• 4)

SI unit of temperature is

• 5)

Increase in area due to heating is called

#### 10th Science - Visual Communication Two Marks Questions - by Ganesh - Dharapuram - Sep 26, 2019 - View & Read

• 1)

What is Scratch?

• 2)

Write a short note on editor and its types?

• 3)

What is Stage?

• 4)

What is Sprite?

• 5)

Distinguish file and folder.

#### 10th Science - Environmental Management Two Marks Questions - by Ganesh - Dharapuram - Sep 26, 2019 - View & Read

• 1)

What would happen if the habitat of wild animals is disturbed?

• 2)

Why fossil fuels are to be conserved?

• 3)

How are e-wastes generated?

• 4)

What is Van Mahotsav?

• 5)

How can we contribute to a sustainable world?

#### 10th Science - Health and Diseases Two Marks Questions - by Ganesh - Dharapuram - Sep 26, 2019 - View & Read

• 1)

Mention the diseases caused by tobacco smoke.

• 2)

• 3)

How does insulin deficiency occur?

• 4)

Mention some behavioural changes seen in drug users.

• 5)

Write a note an symptoms of diabetes mellitus.

#### 10th Science - Breeding and Biotechnology Two Marks Questions - by Ganesh - Dharapuram - Sep 26, 2019 - View & Read

• 1)

Semi-dwarf varieties were introduced in rice. This was made possible by the presence of dwarfing gene in rice. Name this dwarfing gene.

• 2)

Name the types of stem cells.

• 3)

State the importance of biofertiliser.

• 4)

How was IR-8 variety produced?

• 5)

Name the methods of selection.

#### 10th Science - Origin and Evolution of Life Two Marks Questions - by Ganesh - Dharapuram - Sep 26, 2019 - View & Read

• 1)

A human hand, a front leg of a cat, a front flipper of a whale and a bat’s wing look dissimilar and adapted for different functions. What is the name given to these organs?

• 2)

Which organism is considered to be the fossil bird?

• 3)

What is the study of fossils called?

• 4)

What is theory of Cosmic origin?

• 5)

What is theory of Spontaneous generation or Abiogenesis?

#### 10th Science - Heredity Two Marks Questions - by Ganesh - Dharapuram - Sep 26, 2019 - View & Read

• 1)

Name the conditions when both the alleles are identical?

• 2)

A garden pea plant produces axial white flowers. Another of the same species produced terminal violet flowers. Identify the dominant trait?

• 3)

What is the name given to the segments of DNA, which are responsible for the inheritance of a particular character?

• 4)

Name the bond which binds the nucleotides in a DNA.

• 5)

State the law of purity of gametes or the law of segregation

#### 10th Standard Science - Optics Model Question Paper - by Indumathi - Tuticorin - Sep 25, 2019 - View & Read

• 1)

The refractive index of four substances A, B, C and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in

• 2)

Magnification of a convex lens is

• 3)

If VB, VG, VR be the velocity of blue, green and red light respectively in a glass prism, then which of the following statement gives the correct relation?

• 4)

The path of light is ______

• 5)

Violet and red light ______ wavelengths.

#### 10th Standard Science - Laws of Motion Model Question Paper - by Indumathi - Tuticorin - Sep 25, 2019 - View & Read

• 1)

Inertia of a body depends on

• 2)

One kilogram force equals to

• 3)

To project the rockets which of the following principle(s) is /(are) required?

• 4)

The resistance of a body to change its state of rest is called

• 5)

The momentum of a heavy object at rest will be

#### 10th Standard Science - Reproduction in Plants and Animals Two Marks Questions - by Ganesh - Dharapuram - Sep 24, 2019 - View & Read

• 1)

In which part of the flower germination of pollen grains takes place?

• 2)

Name two organisms which reproduces through budding

• 3)

Mention the function of endosperm

• 4)

When is World Menstrual Hygiene Day observed?

• 5)

What is the need for contraception ?

#### 10th Standard Science - Plant and Animal Hormones Two Marks Questions - by Ganesh - Dharapuram - Sep 24, 2019 - View & Read

• 1)

Which hormone promotes the production of male flowers in Cucurbits?

• 2)

Write the name of a synthetic auxin.

• 3)

Which hormone induces parthenocarpy in tomatoes?

• 4)

Which hormone is secreted during emergency situation in man?

• 5)

Which gland secretes digestive enzymes and hormones?

#### 10th Standard Science - Nervous System Two Marks Questions - by Ganesh - Dharapuram - Sep 24, 2019 - View & Read

• 1)

Name the parts of the hind brain.

• 2)

Give an example for conditioned reflexes.

• 3)

Name the parts of a neuron.

• 4)

What is a neurotransmitter?

• 5)

Name the cerebral lobes.

#### 10th Science - Transportation in Plants Circulation in Animals Two Marks Questions - by Ganesh - Dharapuram - Sep 24, 2019 - View & Read

• 1)

What is the shape of RBC in human blood?

• 2)

Which kind of cells are found in the lymph?

• 3)

Mention the artery which supplies blood to the heart muscle.

• 4)

Why are people with AB blood group called as "Universal Recipients"?

• 5)

Write the functions of lymphatic system

#### 10th Science - Structural Organisation of Animals Two Marks Questions - by Ganesh - Dharapuram - Sep 24, 2019 - View & Read

• 1)

How does leech respire?

• 2)

How many pairs of testes are present in leech?

• 3)

What organs are attached to the two bronchi?

• 4)

What does CNS stand for?

• 5)

Why is the teeth of rabbit called heterodont?

#### 10th Science - Plant Anatomy and Plant Physiology Two Marks Questions - by Ganesh - Dharapuram - Sep 24, 2019 - View & Read

• 1)

Where does the carbon that is used in photosynthesis come from?

• 2)

What is the common step in aerobic and anaerobic pathway?

• 3)

Draw diagrams to represent the types of concentric vascular bundles.

• 4)

What are grana?

• 5)

Draw the ultrastructure of a chloroplast and label the parts.

#### 10th Science - Carbon and Its Compounds Two Marks Questions - by Ganesh - Dharapuram - Sep 24, 2019 - View & Read

• 1)

Classify the following compounds based on the pattern of carbon chain and give their structural formula: (i) Propane (ii) Benzene (iii) Cyclobutane (iv) Furan

• 2)

How is ethanoic acid prepared from ethanol? Give the chemical equation.

• 3)

How do detergents cause water pollution? Suggest remedial measures to prevent this pollution?

• 4)

(i) Does structures (A) and (B) represent the same compound?
(ii) Name them.

• 5)

Write a test to alkanes from alkenes.

#### 10th Science - Types of Chemical Reactions Two Marks Questions - by Ganesh - Dharapuram - Sep 21, 2019 - View & Read

• 1)

When an aqueous solution of potassium chloride is added to an aqueous solution of silver nitrate, a white precipitate is formed. Give thr chemical equation of this reaction

• 2)

Why does the reaction rate of a reaction increase on raising the temperature?

• 3)

Define combination reaction. Give one example for an exothermic combination reaction

• 4)

Differentiate reversible and irreversible reactions

• 5)

Define pH.

#### 10th Science - Solutions Two Marks Questions - by Ganesh - Dharapuram - Sep 21, 2019 - View & Read

• 1)

Define the term: Solution

• 2)

What is mean by binary solution

• 3)

Give an example each
i) gas in liquid
ii) solid in liquid
iii) solid in solid
iv) gas in gas

• 4)

Define Volume percentage

• 5)

The aquatic animals live more in cold region Why?

#### 10th Science - Periodic Classification of Elements Two Marks Questions - by Ganesh - Dharapuram - Sep 21, 2019 - View & Read

• 1)

A is a reddish brown metal, which combines with O2 at < 1370 K gives B, a black coloured compound. At a temperature > 1370 K, A gives C which is red in colour. Find A,B and C with reaction.

• 2)

A is a silvery white metal. A combines with O2 to form B at 800oC, the alloy of A is used in making the aircraft. Find A and B

• 3)

What is rust? Give the equation for formation of rust.

• 4)

State two conditions necessary for rusting of iron.

• 5)

Why are elements of group 18 unreactive?

#### 10th Standard Science - Atoms and Molecules Two Marks Questions - by Ganesh - Dharapuram - Sep 21, 2019 - View & Read

• 1)

Define : Relative atomic mass.

• 2)

Write the different types of isotopes of oxygen and its percentage abundance

• 3)

What is Molar volume of a gas?

• 4)

Find the percentage of nitrogen in ammonia.

• 5)

Define atomic mass unit?

#### 10th Science - Nuclear Physics Two Marks Questions - by Ganesh - Dharapuram - Sep 21, 2019 - View & Read

• 1)

Write any two elements which are used for inducing radioactivity?

• 2)

If A is a radioactive element which emits an $\alpha$ - particle and produces 104Rf 259. Write the atomic number and mass number of the element A.

• 3)

Which hazardous radiation is the cause for the genetic disease?

• 4)

When and where was the first nuclear reactor built?

• 5)

Which material protects us from radiation?

#### 10th Science - Acoustics Two Marks Questions - by Ganesh - Dharapuram - Sep 21, 2019 - View & Read

• 1)

What is a longitudinal wave?

• 2)

What is the audible range of frequency?

• 3)

What is the minimum distance needed for an echo?

• 4)

What will be the frequency sound having 0.20 m as its wavelength, when it travels with a speed of 331 m s–1?

• 5)

Name three animals, which can hear ultrasonic vibrations

#### 10th Science - Term 1 Model Question Paper - by Indumathi - Tuticorin - Sep 20, 2019 - View & Read

• 1)

In which of the following sport the turning of effect of force used

• 2)

If a substance is heated or cooled, the change in mass of that substance is

• 3)

SI unit of resistance is

• 4)

• 5)

Mass of 1 mole of Nitrogen atom is

#### 10th Science Chapter 4 Electricity Two Marks Question - by Ganesh - Dharapuram - Sep 19, 2019 - View & Read

• 1)

Define the unit of current.

• 2)

Why is tungsten metal used in bulbs, but not in fuse wires?

• 3)

What is the difference between open and dosed circuits?

• 4)

Write the difference between ammeter and voltmeter

• 5)

Write the difference between conductor and insulator.

#### 10th Science - Thermal Physics Two Marks Question - by Ganesh - Dharapuram - Sep 19, 2019 - View & Read

• 1)

Define one calorie.

• 2)

What is co-efficient of cubical expansion?

• 3)

State Boyle’s law

• 4)

State-the law of volume

• 5)

What is co-efficient of apparant expansion?

#### 10th Science Chapter 2 Optics Two Marks Question - by Ganesh - Dharapuram - Sep 19, 2019 - View & Read

• 1)

State Snell’s law.

• 2)

Draw a ray diagram to show the image formed by a convex lens when the object is placed between F and 2F.

• 3)

Differentiate convex lens and concave lens

• 4)

What is power of accommodation of eye?

• 5)

Why are traffic signals red in colour?

#### 10th Science Unit 1 Laws of Motion Two Marks Question - by Ganesh - Dharapuram - Sep 19, 2019 - View & Read

• 1)

Define inertia. Give its classification.

• 2)

Differentiate mass and weight.

• 3)

Define moment of a couple.

• 4)

Why a spanner with a long handle is preferred to tighten screws in heavy vehicles?

• 5)

While catching a cricket ball the fielder lowers his hands backwards. Why?

#### 10th Science - Term 1 Four Mark Model Question Paper - by Ganesh - Dharapuram - Sep 16, 2019 - View & Read

• 1)

Two bodies have a mass ratio of 3:4 The force applied on the bigger mass produces an acceleration of 12 ms-2.What could be the acceleration of the other body, if the same force acts on it.

• 2)

Calculate the coefficient of cubical expansion of a zinc bar. Whose volume is increased 0.25 m3 from 0.3 m3 due to the change in its temperature of 50 K.

• 3)

State Ohm’s law.

• 4)

Distinguish between the resistivity and conductivity of a conductor.

• 5)

A piece of wire having a resistance R is cut into five equal parts.
a) How will the resistance of each part of the wire change compared with the original resistance?
b) If the five parts of the wire are placed in parallel, how will the resistance of the combination change?
c) What will be ratio of the effective resistance in series connection to that of the parallel connection?

#### 10th Science Quarterly Model Questions Paper - by Ganesh - Dharapuram - Sep 14, 2019 - View & Read

• 1)

Inertia of a body depends on

• 2)

One kilogram force equals to

• 3)

The resistance of a body to change its direction of motion is

• 4)

In a simple circuit, why does the bulb glow when you close the switch?

• 5)

Which of the following statement regarding an atom is always correct?

#### 10th Standard Science - Visual Communication Book Back Questions - by Ganesh - Dharapuram - Sep 11, 2019 - View & Read

• 1)

Which software is used to create animation?

• 2)

Which is used to build scripts?

• 3)

Where you will create category of blocks?

• 4)

Script Area

• 5)

Folder

#### 10th Standard Science - Environmental Management Book Back Questions - by Ganesh - Dharapuram - Sep 11, 2019 - View & Read

• 1)

Which of the following is / are a fossil fuel?
i. Tar
ii. Coal
iii. Petroleum

• 2)

A renewable source of energy is

• 3)

An inexhaustible resources is

• 4)

Green house effect refers to

• 5)

Deforestation leads to ______________ in rainfall.

#### 10th Standard Science - Health and Diseases Book Back Questions - by Ganesh - Dharapuram - Sep 11, 2019 - View & Read

• 1)

Tobacco consumption is known to stimulate secretion of adrenaline. The component causing this could be

• 2)

Coronary heart disease is due to

• 3)

Metastasis is associated with

• 4)

Where does alcohol effect immediately after drinking?

• 5)

Expand the following abbreviations - IDDM

#### 10th Standard Science - Breeding and Biotechnology Book Back Questions - by Ganesh - Dharapuram - Sep 11, 2019 - View & Read

• 1)

Which method of crop improvement can be practised by a farmer if he is inexperienced?

• 2)

Himgiri developed by hybridisation and selection for disease resistance against rust pathogens is a variety of _______.

• 3)

Which of the following is used to produce products useful to humans by biotechnology techniques?

• 4)

rDNA is a

• 5)

A protein rich wheat variety is ________.

#### 10th Standard Science - Origin and Evolution of Life Book Back Questions - by Ganesh - Dharapuram - Sep 11, 2019 - View & Read

• 1)

Biogenetic law states that ___________

• 2)

The ‘use and disuse theory’ was proposed by __________.

• 3)

Paleontologists deal with

• 4)

The term Ethnobotany was coined by

• 5)

The characters developed by the animals during their life time, in response to the environmental changes are called ______________.

#### 10th Standard Science - Heredity Book Back Questions - by Ganesh - Dharapuram - Sep 11, 2019 - View & Read

• 1)

According to Mendel alleles have the following character

• 2)

Okasaki fragments are joined together by ___________________.

• 3)

The loss of one or more chromosome in a ploidy is called_____________.

• 4)

The pairs of contrasting character (traits) of Mendel are called_________

• 5)

DNA consists of two ____________ chains

#### 10th Standard Science - Reproduction in Plants and Animals Book Back Questions - by Ganesh - Dharapuram - Sep 11, 2019 - View & Read

• 1)

The plant which propagates with the help of its leaves is ___________

• 2)

What is true of gametes?

• 3)

The large elongated cells that provide nutrition to developing sperms are

• 4)

Which one of the following is an IUCD?

• 5)

After fertilization the ovary develops into ___________

#### 10th Standard Science - Plant and Animal Hormones Book Back Questions - by Ganesh - Dharapuram - Sep 11, 2019 - View & Read

• 1)

Gibberellins cause:

• 2)

Which organ acts as both exocrine gland as well as endocrine gland

• 3)

_______ causes cell elongation, apical dominance and prevents abscission.

• 4)

___________ is a gaseous hormone involved in abscission of organs and acceleration of fruit ripening.

• 5)

The hormone which has negative effect on apical dominance is _________.

#### 10th Science Chapter 15 Nervous System Book Back Questions - by Ganesh - Dharapuram - Sep 09, 2019 - View & Read

• 1)

The neurons which carries impulse from the central nervous system to the muscle fibre.

• 2)

Which nervous band connects the two cerebral hemispheres of brain?

• 3)

Vomiting centre is located in

• 4)

Nerve cells do not possess

• 5)

The two antagonistic component of autonomic nervous system are ______ and __________.

#### 10th Science - Transportation in Plants Circulation in Animals Book Back Questions - by Ganesh - Dharapuram - Sep 09, 2019 - View & Read

• 1)

Active transport involves

• 2)

Which is the sequence of correct blood flow

• 3)

A patient with blood group O was injured in an accident and has blood loss. Which blood group the doctor should effectively use for transfusion in this condition?

• 4)

‘Heart of heart’ is called

• 5)

Which one of the following regarding blood composition is correct

#### 10th Science - Structural Organisation of Animals Book Back Questions - by Ganesh - Dharapuram - Sep 09, 2019 - View & Read

• 1)

In leech locomotion is performed by

• 2)

The segments of leech are known as

• 3)

Mammals are ______________ animals.

• 4)

The animals which give birth to young ones are

• 5)

The posterior sucker is formed by the fusion of the ___________ segments

#### 10th Science - Plant Anatomy and Plant Physiology Book Back Questions - by Ganesh - Dharapuram - Sep 09, 2019 - View & Read

• 1)

The endarch condition is the characteristic feature of

• 2)

The xylem and phloem arranged side by side on same radius is called _________

• 3)

Which is formed during anaerobic respiration

• 4)

Kreb’s cycle takes place in

• 5)

Cortex lies between _______.

#### 10th Science - Carbon and Its Compounds Book Back Questions - by Ganesh - Dharapuram - Sep 09, 2019 - View & Read

• 1)

The molecular formula of an open chain organic compound is C3H6. The class of the compound is

• 2)

The IUPAC name of an organic compound is 3-Methyl butan-1-ol. What type compound it is?

• 3)

Which of the following are used as anaesthetics?

• 4)

The general molecular formula of alkynes is _____________

• 5)

In IUPAC name, the carbon skeleton of a compound is represented by _________ (root word / prefix / suffix)

#### 10th Standard Science - Types of Chemical Reactions Book Back Questions - by Ganesh - Dharapuram - Sep 06, 2019 - View & Read

• 1)

Photolysis is a decomposition reaction caused by

• 2)

A single displacement reaction is represented by X(s) + 2HCl(aq) → XCl2(aq) + H2(g). Which of the following(s) could be X. (i) Zn (ii) Ag (iii) Cu (iv) Mg. Choose the best pair.

• 3)

Which of the following is not an“element + element → compound” type reaction?

• 4)

The pH of a solution is 3. Its [OH–] concentration is

• 5)

Powdered CaCO3 reacts more rapidly than flaky CaCO3 because of

#### 10th Science - Solutions Book Back Questions - by Ganesh - Dharapuram - Sep 06, 2019 - View & Read

• 1)

A solution is a __________ mixture.

• 2)

Solubility of NaCl in 100 ml water is 36 g. If 25 g of salt is dissolved in 100 ml of water how much more salt is required for saturation _____________

• 3)

A 25% alcohol solution means

• 4)

Solubility is the amount of solute dissolved in _____ g of solvent.

• 5)

Volume persentage decreases with increases in temperature because _____.

#### 10th Science Chapter 8 Periodic Classification of Elements Book Back Questions - by Ganesh - Dharapuram - Sep 06, 2019 - View & Read

• 1)

_____ is a relative periodic property

• 2)

______ is an important metal to form amalgam

• 3)

The scientist who propounded the modern periodic law is ________.

• 4)

________ and ________ are called inner transition elements

• 5)

The chemical name of rust is____________

#### 10th Standard Science - Atoms and Molecules Book Back Questions - by Ganesh - Dharapuram - Sep 04, 2019 - View & Read

• 1)

Th e volume occupied by 4.4 g of CO2 at S.T.P

• 2)

The volume occupied by 1 mole of a diatomic gas at S.T.P is

• 3)

The gram molecular mass of oxygen molecule is

• 4)

1 mole of any substance contains __________ molecules

• 5)

The sum of the numbers of protons and neutrons of an atom is called its __________

#### 10th Standard Science - Nuclear Physics Book Back Questions - by Ganesh - Dharapuram - Sep 04, 2019 - View & Read

• 1)

• 2)

_____________ aprons are used to protect us from gamma radiations

• 3)

In the nuclear reaction 6X12 $\overset { \alpha decay }{ \longrightarrow }$ zYA the value of A & Z.

• 4)

The radio isotope of ________ helps to increase the productivity of crops.

• 5)

If the radiation exposure is 100 R, it may cause ______________.

#### 10th Standard Science - Acoustics Book Back Questions - by Ganesh - Dharapuram - Sep 03, 2019 - View & Read

• 1)

When a sound wave travels through air, the air particles

• 2)

Velocity of sound in a gaseous medium is 330 m s-1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is

• 3)

The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?

• 4)

Velocity of sound in the atmosphere of a planet is 500 m s-1. The minimum distance between the sources of sound and the obstacle to hear the echo, should be

• 5)

Rapid back and forth motion of a particle about its mean position is called _____

#### 10th Standard Science Unit 3 Thermal Physics Book Back Questions - by Ganesh - Dharapuram - Sep 02, 2019 - View & Read

• 1)

The value of universal gas constant

• 2)

In the Given diagram, the possible direction of heat energy transformation is

• 3)

Hotness or coldness of an object is called _____

• 4)

The process of heat transfer directly from molecule to molecule is called ______

• 5)

Transfer of energy between any two objects due to difference in temperature is called _____

#### 10th Standard Science Unit 3 Electricity Book Back Questions - by Ganesh - Dharapuram - Sep 02, 2019 - View & Read

• 1)

Which of the following is correct?

• 2)

In a simple circuit, why does the bulb glow when you close the switch?

• 3)

Kilowatt hour is the unit of

• 4)

The purpose of a rheostat is __________.

• 5)

electric current

#### 10th Standard Science Unit 2 Optics Book Back Questions - by Ganesh - Dharapuram - Aug 31, 2019 - View & Read

• 1)

The refractive index of four substances A, B, C and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in

• 2)

Power of a lens is –4D, then its focal length is

• 3)

In a myopic eye, the image of the object is formed

• 4)

If VB, VG, VR be the velocity of blue, green and red light respectively in a glass prism, then which of the following statement gives the correct relation?

• 5)

The path of the light is called as_____________

#### 10th Standard Science Unit 1 Laws of Motion Book Back Questions - by Ganesh - Dharapuram - Aug 30, 2019 - View & Read

• 1)

The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg

• 2)

If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will

• 3)

To project the rockets which of the following principle(s) is /(are) required?

• 4)

By convention, the clockwise moments are taken as ___________ and the anticlockwise moments are taken as__________

• 5)

___________ is used to change the speed of car.

#### 10th Standard Science Unit 9 Solutions One Mark Question with Answer Key - by Ganesh - Dharapuram - Aug 29, 2019 - View & Read

• 1)

A solution is a __________ mixture.

• 2)

The number of components in a binary solution is _____________

• 3)

Under which of the following cases, dissolution of sugar will be rapid?

• 4)

A beaker contains a solution of copper sulphate. precipitation of copper sulphate takes place when small amount of it added to ________ solution.

• 5)

Quick lime is dissolved in water is a ______________ process.

#### 10th Standard Science Unit 8 Periodic Classification of Elements One Mark Question and Answer - by Ganesh - Dharapuram - Aug 29, 2019 - View & Read

• 1)

The number of periods and groups in the periodic table are__________.

• 2)

The basis of modern periodic law is__________

• 3)

Neon shows zero electron affinity due to _____.

• 4)

The acid which makes iron passive is _______________

• 5)

The green layer found on the copper vessel is due to the formation of ________

#### 10th Science Atoms and Molecules One Mark Question with Answer - by Ganesh - Dharapuram - Aug 28, 2019 - View & Read

• 1)

Which of the following represents 1 amu?

• 2)

In the nucleus of 20Ca40, there are

• 3)

The mass of an atom is measured in ____________

• 4)

Pick out the isotopes among the following pairs

• 5)

Which among the following is a homo atomic molecule?

#### 10th Science Unit 6 Nuclear Physics One Mark Question with Answer Key - by Ganesh - Dharapuram - Aug 27, 2019 - View & Read

• 1)

• 2)

_____________ aprons are used to protect us from gamma radiations

• 3)

Proton - Proton chain reaction is an example of__________

• 4)

A chain reaction is continuous due to

• 5)

#### 10th Science Unit 5 Acoustics One Mark Question and Answer - by Ganesh - Dharapuram - Aug 27, 2019 - View & Read

• 1)

When a sound wave travels through air, the air particles

• 2)

The frequency, which is audible to the human ear is

• 3)

The velocity of sound is affected by

• 4)

The speed of sound in air is 300 m/s. What is the frequency as heard by the human ear?

• 5)

Infrasound can be heard or produced by

#### 10th Science Chapter 4 Electricity One Mark Question and Answer - by Ganesh - Dharapuram - Aug 27, 2019 - View & Read

• 1)

Which of the following is correct?

• 2)

In a simple circuit, why does the bulb glow when you close the switch?

• 3)

When one of three series resistors is removed from a circuit and the circuit is reconnected the current

• 4)

According to Ohm's law if voltage increase and resistance stays the same

• 5)

The amount of work done in joules when one unit electric charges moves from one point to another point in an electric circuit is called.

#### 10th Science Unit 3 Thermal Physics - One Mark Question Paper with Answer - by Ganesh - Dharapuram - Aug 26, 2019 - View & Read

• 1)

The value of universal gas constant

• 2)

Which of the following has the fastest process of heat transfer?

• 3)

At what temperature are Celsius and Fahrenheit equal

• 4)

In which process heat is transferred directly from one molecule to other?

• 5)

Temperature is a property which determines

#### 10th Standard Science MODEL QUARTERLY EXAMINATION QUESTION PAPER-SEPTEMBER 2019 - by Mohan Babu S - Aug 25, 2019 - View & Read

• 1)

The unit of ‘g’ is m s-2. It can be also expressed as

• 2)

Which of the following lens would you prefer to use while reading small letters found in a dictionary?

• 3)

The value of universal gas constant

• 4)

Which of the following represents 1 amu?

• 5)

Which of the following have inert gases 2 electrons in the outermost shell

#### 10th Science Chapter 2 Optics One Mark Questions and Answer - by Ganesh - Dharapuram - Aug 24, 2019 - View & Read

• 1)

The refractive index of four substances A, B, C and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in

• 2)

In a myopic eye, the image of the object is formed

• 3)

The eye defect ‘presbyopia’ can be corrected by

• 4)

If VB, VG, VR be the velocity of blue, green and red light respectively in a glass prism, then which of the following statement gives the correct relation?

• 5)

The path of light is ______

#### 10th Science Laws of Motion One Mark Question Paper - by Ganesh - Dharapuram - Aug 23, 2019 - View & Read

• 1)

Inertia of a body depends on

• 2)

The unit of ‘g’ is m s-2. It can be also expressed as

• 3)

One kilogram force equals to

• 4)

The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg

• 5)

Study of moving bodies under the action of forces ______

#### 10th Science Transportation in Plants Circulation in Animals Model Question Paper - by Ganesh - Dharapuram - Aug 20, 2019 - View & Read

• 1)

Which is the sequence of correct blood flow

• 2)

A patient with blood group O was injured in an accident and has blood loss. Which blood group the doctor should effectively use for transfusion in this condition?

• 3)

‘Heart of heart’ is called

• 4)

The _________are the largest ofleucocytes

• 5)

The life span of platelets is_________

#### 10th Science Chapter 13 Structural Organisation of Animals Model Question Paper - by Ganesh - Dharapuram - Aug 19, 2019 - View & Read

• 1)

Mammals are ______________ animals.

• 2)

The animals which give birth to young ones are

• 3)

In leeches sperms are stored in

• 4)

Dental formula of rabbit is______

• 5)

Egg cells of Rabbit are released in_________

#### 10th Science Plant Anatomy and Plant Physiology Model Question Paper - by Ganesh - Dharapuram - Aug 12, 2019 - View & Read

• 1)

Casparian strips are present in the _____________ of the root.

• 2)

The endarch condition is the characteristic feature of

• 3)

Oxygen is produced at what point during photosynthesis ?

• 4)

Exarch and tetrarch xylem are a feature of _______________

• 5)

Protoxylem lacuna refers to a ________

#### 10th Standard Science Atoms and Molecules Model Question Paper - by Ganesh - Dharapuram - Aug 05, 2019 - View & Read

• 1)

The gram molecular mass of oxygen molecule is

• 2)

1 mole of any substance contains __________ molecules

• 3)

The mass of an atom is measured in ____________

• 4)

Atoms of different elements with different atomic numbers, but same mass number are known as _________

• 5)

Pick out the isotopes among the following pairs

#### 10th Standard Science First Mid Term Model Question Paper - by Ganesh - Dharapuram - Aug 01, 2019 - View & Read

• 1)

If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will

• 2)

The resistance of a body to change its state of motion is called

• 3)

The physical quantity which is equal to change in momentum is

• 4)

Where should an object be placed so that a real and inverted image of same size is obtained by a convex lens

• 5)

______ is an important metal to form amalgam

#### 10th Standard Science Chapter 4 Electricity Model Question Paper - by Ganesh - Dharapuram - Jul 31, 2019 - View & Read

• 1)

Which of the following is correct?

• 2)

SI unit of resistance is

• 3)

A series circuit consists of three resistors with values of 140, 250 and 220. The total resistance is

• 4)

When one of three series resistors is removed from a circuit and the circuit is reconnected the current

• 5)

Which of the following laboratory apparatus is used during the verification of Ohm's law?

#### 10th Standard Science Chapter 3 Thermal Physics Important Question Paper - by Ganesh - Dharapuram - Jul 26, 2019 - View & Read

• 1)

The value of universal gas constant

• 2)

Change in volume of a solid during heating is

• 3)

Linear expansion is the change in _____ when object is heated or cooled.

• 4)

Fundamental laws of gases are

• 5)

At constant temperature volume is inversely proportional to pressure of a gas is known as

#### 10th Standard Science Chapter 2 Optics Important Question Paper - by Ganesh - Dharapuram - Jul 25, 2019 - View & Read

• 1)

Power of a lens is –4D, then its focal length is

• 2)

In a myopic eye, the image of the object is formed

• 3)

The eye defect ‘presbyopia’ can be corrected by

• 4)

Which of the following lens would you prefer to use while reading small letters found in a dictionary?

• 5)

Violet and red light ______ wavelengths.

#### 10th Science - Lesson 1 Important Question Paper - by Ganesh - Dharapuram - Jul 18, 2019 - View & Read

• 1)

Inertia of a body depends on

• 2)

Newton’s III law is applicable

• 3)

The mass of a body is measured on planet Earth as M kg. When it is taken to a planet of radius half that of the Earth then its value will be____kg

• 4)

If the Earth shrinks to 50% of its real radius its mass remaining the same, the weight of a body on the Earth will

• 5)

To project the rockets which of the following principle(s) is /(are) required?

#### centum ten mark questions in state board English medium science chapter one - by Pragathi - Jun 28, 2019 - View & Read

• 1)

When a constant force acts of 10 s on a body of mass 10 kg, which is initially at rest, moves a distance of 500 cm in 10 s. Calculate the frictional force required to bring the body to rest.

• 2)

A pistol fired a bullet of mass 50 g triggered with a speed 250 ms-1 penetrated into a wooden plank comes to rest at 1 ms. Find the impulse and average force offered by the planks.

• 3)

Force of 50 N acts perpendicular on a body, which is fixed at a point O. The distance of point of action of force from O is 5 cm. Find the moment of force.

• 4)

A person of weight 50 kg is moving down in an elevator Calculate downward acceleration offered by the elevator whose reaction force is 400 N on the surface.

• 5)

Calculate the force of gravitation between two bodies of weight 50 kg and 10 kg respectively place at 10 m apart. If their distance increased to 100 % then find the change in percentage of force. (New force is 75% less than the original force)

#### State board English medium frequently asked five mark problems in science chapter one - by Pragathi - Jun 28, 2019 - View & Read

• 1)

Calculate the velocity of a moving body of mass 5 kg whose linear momentum is 2.5 kg m s-1.

• 2)

A door is pushed, at a point whose distance from the hinges is 90 cm, with a force of 40 N. Calculate the moment of the force about the hinges.

• 3)

At what height from the centre of the Earth the acceleration due to gravity will be 1/4 th of its value as at the Earth.

#### very important multiple choice questions in 10th science state board english medium - by Pragathi - Jun 28, 2019 - View & Read

• 1)

Inertia of a body depends on

• 2)

Impulse is equals to

• 3)

Newton’s III law is applicable

• 4)

Plotting a graph for momentum on the X-axis and time on Y-axis. slope of momentum- time graph gives

• 5)

In which of the following sport the turning of effect of force used

#### Atoms and Molecules - by 9159292978 - Jun 19, 2019 - View & Read

• 1)

Which of the following has the smallest mass?

• 2)

Which of the following is a triatomic molecule?

• 3)

Th e volume occupied by 4.4 g of CO2 at S.T.P

• 4)

Mass of 1 mole of Nitrogen atom is

• 5)

Which of the following represents 1 amu?