Which one the following systems of unit is the British System of unit?

(a)

CGS

(b)

MKS

(c)

FPS

(d)

SI

SI unit stands for

(a)

International system of units

(b)

Integrated System of units

(c)

International symbol of units

(d)

Integrated symbol of units

Unit of pressure is

(a)

pascal

(b)

Nm^–2

(c)

poise

(d)

Both (a) & (b)

Matter is composed of

(a)

atoms

(b)

molecules

(c)

ions

(d)

all of the above

Pencil lead contains

(a)

graphite

(b)

diamond

(c)

aluminium

(d)

sulphur

Binominal Nomenclature was first introduced in the year of

(a)

1970

(b)

1975

(c)

1978

(d)

1623

_______ is used to measure electric current.

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Ammeter

The symbol of Tungsten is ________

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ω

The first true land plant is ______

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pteridophytes

The size of the cells are measured in units of __________.

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Micron

SI units are metric system of units.

(a) True

(b) False

A body will sink if the weight of the body is greater than the buoyant force.

(a) True

(b) False

CFC is a pollutant.

(a) True

(b) False

Yeast is used in the large scale production of alcohol.

(a) True

(b) False

In gymnosperms ovules are developed from the flowers.

(a) True

(b) False

Plane Angle

(1)

Angle formed by the intersection of two planes

Lubricants

(2)

Making the filament of a bulb

Multiple reflection

(3)

Kaleidoscope

Tungsten

(4)

reduce friction

Amino acids

(5)

enzymes, hormone, protein

What is the unit of mass in FPS system?

Calculate the pressure exerted by the foot of an elephant using the following data. Average weight of an elephant is 4000 N. Surface area of the sole of its foot is 0.1m².

The radius of curvature of a spherical mirror is 20 cm. Find its focal length.

Give two examples for metalloids.

Define catalysis

Who discovered penicillin?

What is cell differentiation?

Define - mole.

Why is a ball bearing used in a cycle hub?

Define focal length?

List out the base quantities with their units.

Explain the three types of pollution.

Differentiate between inhalation and exhalation.