Question # 1

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

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Towards the moving bus

Away form the bus

In the direction of motion

opposite to the direction of motion

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

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Physical balance

Spring balance

A and B both

None

Rolling friction is___________ then sliding friction :

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Greter

Less

Some

Half

Kgms^-2 is equal to:

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Joule

Mole

Newton

Watt

The unit of momentum is:

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kgms^-2

kgms^-1

Ns^-1

None of these

The formula for centripetal force is:

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Fc = mv2

Fc = mr2

Fc = mv2 / r

Fc = m/v

If a 20 N wight of block hang with the string vertically then tension in string is:

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0 N

20 N

2 N

10 N

A ball of mass 1 kg moving with velocity 2 ms-1, Its momentum will be

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1 Ns

2 Ns

0.5 Ns

4 Ns

Which of the following is unit of momentum?

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Nm

Kgms^-2

Ns

Ns^-1

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

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Cart

Earth

Horse

Earth and cart

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

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Inertia

Force

Momentum

None

Formula of weight is derived from which law?

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First law

Second law

Third law

Law of conservation of momentum

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Physics 9th Class English Medium Unit 3 Online Test MCQs With Answers

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