Question # 1

The unit of momentum is :

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kgms^-1

kgms^-2

m sec

None

When a horse pulls a cart , the action is on the :

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Cart

Earth

Man

Earth & cart

The approximate weight of 80 gram mass on the surface of Earth is

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800 N

80 N

0.8 N

8 N

Which is unitless quantity:

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Mass

Force

Inertia

Momentum

Walking on earth is the example of which law?

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First law

Second law

Third law

Law of momentum

Co-efficient of friction between iron and iron is:

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1.0

0.62

0.9

1.2

Friction is caused by :

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Shining surface

Rough surface

Polished surface

Nil

The unit of π is:

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N

m

s

None

A string is stretched by two equal and opposite force 10 N each. The tension in the string is:

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Zero

5 N

10 N

20 N

How much force is needed to body of mass 10 kg from falling:

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100 N

150 N

200 N

300 N

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

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Direction

Opposite

Same

None of these

Law of motion was presented by the scientist.

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Einstein

Newton

Galileo

Archimedes

The formula for centripetal force is:

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Fc = mv2

Fc = mr2

Fc = mv2 / r

Fc = m/v

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