Question # 1

The machine which use unequal masses to find the value of "g" is ________

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Free fall apparatus

Atwood machine

Pulley

None

1 N ___________

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1 kgms^-2

1 kg ms^-1

ms^-2

All

Weight is measured by:

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Spring balnce

Measuring cylinder

Physical balnce

None of these

Friction is caused by :

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Shining surface

Rough surface

Polished surface

Nil

Which is unitless quantity:

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Mass

Force

Inertia

Momentum

In circular motion, the motion of every particle of body is.

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Direction

Opposite

Same

None of these

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

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Inertia

Force

Momentum

None

Which parameter remain same every where?

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Force

Mass

Weight

Velocity

The force which opposes the motion is called.

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Momentum

Friction

Inertia

Tension

The unit of coefficient of friction .

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Newton

ms^-1

ms^-2

No unit

A boy jumps out of a moving bus. There is danger for him to fall

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Towards the moving bus

In the direction of motion

away from the bus

Opposite to the direction of motion

If the acceleration is 10 m/s2 and mass 10kg:

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F = 99N

F = 100 Kg

F = 100 m/s2

F =100 N

The formula of momentum is:

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P=Fa

P=mv

F=ma

F=mg

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