9th Standard Syllabus & Materials
9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роХрогро┐родроорпН роЖропродрпНродрпКро▓рпИ ро╡роЯро┐ро╡ро┐ропро▓рпН,роорпБроХрпНроХрпЛрогро╡ро┐ропро▓рпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Maths Coordinate Geometry,Trigonometry Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роХрогро┐родроорпН роЕро│ро╡ро┐ропро▓рпН,рокрпБро│рпНро│ро┐ропро┐ропро▓рпН&роиро┐роХро┤рпНродроХро╡рпБ роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Maths Mensuration,Statistics&Probability Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - роЪрпЖро╡рпНро╡ро┐ропро▓рпН роЙро▓роХроорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - The Classical World Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - родрпКроЯроХрпНроХроХро╛ро▓родрпН родрооро┐ро┤рпНроЪрпН роЪроорпВроХроорпБроорпН рокрогрпНрокро╛роЯрпБроорпНроорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - Early Tamil Society and Culture Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - родрпКро┤ро┐ро▒рпНрокрпБро░роЯрпНроЪро┐ роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - Industrial Revolution Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - роиро╡рпАрой ропрпБроХродрпНродро┐ройрпН родрпКроЯроХрпНроХроорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - The Beginning of the Modern AgeImportant 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
Published on: 22/09/2018
Slip Test
Download Tamil Nadu 9th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Define Homogeneous mixture
2.
Write the relation between the angle of incidence and the angle of refraction?
3.
Calculate the number of neutrons, protons and electrons (i) atomic number 3 and mass number 7 (ii) atomic number 92 and mass number 238.
4.
Complete of following sentences
a. The acceleration of the body that moves with a uniform velocity will be ________
b. A train travels from A to station B with a velocity of 100 km/h and returns from station B to station A with a velocity of 80km/h. Its average velocity during the whole journey in ______________ and its average speed is ____________
5.
How will you measure the least count of vernier caliper?
6.
Name the other particles present in the Nucleus of an atom.
7.
Why are convex mirrors preferred to use rear view mirrors in vehicles?
8.
Give two examples of transparent medium that are denser than air
9.
Copy the following and write the names of the laws and their simple definitions in the space provided.
10.
Name an element which has the same number of electrons in its first and second shell
11.
Convert: 300 K into Celsius scale,
12.
Why is it possible to row a boat in water but not pass through a wooden fence
13.
Give experimental evidence for the discovery of neutron.
14.
Distinguish between boiling and evaporation.
15.
How are homogenous solutions different from heterogeneous solution? Explain with examples.
16.
Gay-Lussac law always dealing with________
Solids
Liquids
Gases
Semi-solids
17.
James Chadwick observed when was exposed to a particle, particles with about the same mass as protons were emitted.
Boron
Carbon
Helium
Beryllium
18.
_____ is a process by which a substance changes from the liquid to gaseous state.
Boiling
Evaporation
Melting
Condensation
19.
Mirrors having spherical surface of reflection are __________________
plane mirror
lenses
spherical mirrors
prism
20.
Newton, henry, ampere and watt are__________named after scientist.
length
distance
meter
units
21.
____________is the fundamental quantity.
Length
Area
Volume
Density
22.
_________ is used as reflectors in torchlight.
concave mirror
convex mirror
plane mirror
None of these
23.
The separation of denser particles from lighter particles done by rotation at high speed is called ________
Filtration
sedimentation
decantation
centrifugation
24.
Unit of acceleration is
ms-1
ms-2
ms
ms2
25.
The area under velocity – time graph represents the
velocity of the moving object
displacement covered by the moving object
speed of the moving object
acceleration of the moving object
26.
Assertion: A ray of light from an object successively bends away from the normal and undergo total internal reflection.
Reason: If the angle of reflection for the air near the ground reduces the critical angle.
27.
Assertion (A): The skill of estimation is important for all of us in our daily life.
Reason (R): The skill of estimation reduces our consumption of time
(a) Both A and R are true but R is not the correct reason
(b) Both A and R are true and R is the correct reason
(c) A is true but R is false
(d) A is false but R is true
28.
Mark the correct choice as:
(a) Both assertion and reason are true and reason is the correct explanation of assertion.
(b) Both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false.
(d) Assertion is false but reason is true.
Assertion: One can determine the distance moved by the car from its velocity-time graph.
Reason: The area under the velocity-time graph gives the distance moved by the car in a given interval of time.
1.
In a homogeneous mixture the components are uniformly mixed and it will have single phase.
2.
When the incident ray travel from one medium to another medium refraction takes place.
3.
| S.No | Element | Atomic number |
Mass number |
No. of protons |
No. of electrons |
No. of neutrons |
| 1. |
Lithium |
3 |
7 |
3 | 3 | 4 |
| 2. | Uranium | 92 | 238 | 92 | 92 | 146 |
4.
(a) Zero (b) 2 hours ; 90 km/h
5.
The value is one smallest main scale division is divided by total number of vernier scale division is called the least count of vernier caliper.
\( \text { Least count } =\frac{\text { The value of one smallest main scale division }}{\text { Totalnumber of vernier scale division }}\)
\( \\ \text { L.C } =\frac{1 \mathrm{~mm}}{10}=0.1 \mathrm{~mm}=0.01 \mathrm{~cm}\)
6.
Mesons, neutrino, antineutrino, positrons are present in the nucleus of an atom.
7.
Convex mirrors are preferred because they always give an erect image. They have a wider field view as they are curved outwards.
8.
Water, glass.
9.
1. Laws of conservation of mass:
In a chemical change the total mass of the reactant is equal to the total mass of the products.
2. Law of definite proportion:
"A pure chemical compound prepared by any method consists of the same elements combined together in the fixed proportion by mass".
3. Law of multiple proportion:
When two elements A and B combine together to form more than one compound, then masses of A which separately combines with a fixed mass of B are in simple ratio.
4. Laws of Reciprocal proportion:
"If two elements combine separately the same weight of a third element, the ratios of the masses in which they do so are either the same or a simple multiple of the mass ratio in which they combine.
5. Gay Lussac's law of combining volumes:
Whenever gases react together, the volumes of the reacting gases as well as the products bear a simple whole number ratio, provided all the volumes are measured under similar conditions of temperature and pressure.
10.
Beryllium.
11.
Celsius = K - 273 = 300 - 273 = 27°C.
12.
Water can be compressed, has less density, high kinetic energy, attractive forces are not so strong, can flow easily so it is possible to row a boat in water but not pass through a wooden fence.
13.
James Chadwick observed when Beryllium was exposed to alpha particles. Particles with about the same mass as protons were emitted.
Beryllium + Alpha rays тЯ╢ Carbon + neutron
4Be8 + α-rays тЯ╢ 6C12 + neutron
These emitted particles carried no electrical charges. They are called as neutrons. Neutron is represented by N.
14.
| Basis for Comparison | Boiling | Evaporation |
| Meaning | Boiling implies a vaporization process that turns liquid into gas, when heated. It is a fast process. |
Evaporation is a natural process, wherein the liquid changes its form to gas even without heating. It is a slow process |
| Phenomenon | Bulk | Surface |
| Temperature | Occurs only at boiling point | Occurs at any temperature |
| Appearance | It forms bubbles | It does not forms bubbles. |
| Energy | Source of energy is required | Energy is supplied by the surrounding. |
| Temperature of liquid | Remains constant | Decreases. |
15.
| Homogeneous mixtures | Heterogeneous mixtures |
| 1. Components are uniformly mixed and it will have single phase, E.g. Alloys, salt solution, lemonade, petrol, etc |
Components are not uniformly mixed and it will have more than single phase are called suspensions. E.g. chalk in water, petrol in water, sand in water, etc. |
| 2. No boundaries of separation between the components. Has single phase. |
There are visible boundaries between the components. Have two or more distinct phases. |
| 3. Components are invisible to naked eye. | Components are visible to naked eye |
| 4. They will be in solid, liquid or in the gaseous phase | Can be a solid-liquid or solid-gas or liquid- gas or solid-solid, or liquid-liquid mixtures |
16.
(c)
Gases
17.
(d)
Beryllium
18.
(b)
Evaporation
19.
(c)
spherical mirrors
20.
(d)
units
21.
(a)
Length
22.
(a)
concave mirror
23.
(d)
centrifugation
24.
(b)
ms-2
25.
(b)
displacement covered by the moving object
26.
Assertion is true but reason is false
27.
Both A and R are true and R is the correct reason
28.
Both assertion and reason are true and reason is the correct explanation of assertion.
9th Standard Syllabus & Materials
9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - рокрогрпНроЯрпИроп роиро╛роХро░ро┐роХроЩрпНроХро│рпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - Ancient . Civilisations Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - рокрпБро░роЯрпНроЪро┐роХро│ро┐ройрпН роХро╛ро▓роорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - The Age of Revolutions Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
NEW9th Standard
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NEW9th Standard
TN 9роЖроорпН ро╡роХрпБрокрпНрокрпБ роЪроорпВроХ роЕро▒ро┐ро╡ро┐ропро▓рпН ро╡ро░ро▓ро╛ро▒рпБ - роЖроЪро┐роп роЖрокрпНрокро┐ро░ро┐роХрпНроХ роиро╛роЯрпБроХро│ро┐ро▓рпН роХро╛ро▓ройро┐ропро╛родро┐роХрпНроХроорпН роорпБроХрпНроХро┐ропрооро╛рой 2,3,&5 роородро┐рокрпНрокрпЖрогрпН ро╡ро┐ройро╛роХрпНроХро│рпН ро╡ро┐роЯрпИроХро│рпБроЯройрпН TN 9th Social Science HIS - Colonialism in Asia and Africa Important 1 Mark Questions with Answers 2,3,&5 Marks Questions with Answers.
Tamilnadu Stateboard 9th Standard Subjects
Tamilnadu Stateboard Standards
