Question # 1

A mass of a body:

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Decreases when accelerated

Increases when accelerated

Decreases when moving with velocity

None of the above

Unit of Resultant force is:

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Nm^-2

N.m

Nm^-1

N

The product of force and momentum arm is called:

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Couple arm

Torque

Rigid body

Axis of rotation

A minor but sudden fall in atmospheric pressure is followed by

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a storm and a rain

an intense weather

a pleasant weather

a poor weather

The product of mass and _______ is called momentum;

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Velocity

Force

Acceleration

None

GPS consists of __________ earth satellites.

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30

2

7

24

What happens to the thermal conductivity of a wall if its thickness is doubled?

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Become double

Remain the same

Become half

Become one fourth

A line about which a body rotates is called;

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Axis of rotation

Rigid Body

Center of gracity

None of these

Which of the following is the unit of momentum?

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Nm

kgms^-2

Ns

Ns^-1

That force which produces an acceleration of one metre per second per second in a body of one kilogram mass is called

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1 joule

1 newton

1 watt

1 ampere

In falling object potential energy is covered to:

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K.E

Force

P.E

Nil

The energy stored in coal is

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Heat energy

Kinetic energy

Chemical energy

Nuclear energy

S.I unit of pressure is :

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Nm^-2

Newton

Joule

Watt

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