Question # 1

Weight is measured by:

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Spring balnce

Measuring cylinder

Physical balnce

None of these

A body of mass 5 kg i moving with a velocity of 10 ms^-1. Find the force required to stop it in 2s.

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5 N

25 N

20 N

30 N

________ is used to measure the force or weight of a body :

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Physical balance

Spring balance

A and B both

None

Which of the following is the unit of momentum?

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Nm

kgms^-2

Ns

Ns^-1

The force which complete a body to move in circle is:

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Centripetal force

Centrifugal force

Perpendicular force

Tension

Which types of friction is minimum?

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Sliding

Limiting

Rolling

None

A mass of a body:

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Decreases when accelerated

Increases when accelerated

Decreases when moving with velocity

None of the above

Which types of friction of maximum

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Sliding

Rolling

Both a and b

None

Which law of motion is called law of inertia:

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first law of motion

Second law of motion

Third law of motion

Law of conversation of momentum

A force of 20 N is acting on a body of mass 8 kg,Its acceleration will be

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2.5 ms-2

4.5 ms-2

5.5 ms-2

3.5 ms-2

Relation between force and momentum is:

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ΔP/F

ΔP/t

ΔPF

None

Friction is due to

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Roughness

Shape

Smoothness

None

Acceleration is produced by 20 N force it is due to:

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Inertia

Force

Momentum

None

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