Question # 1

The static fraction between wood and lather is _______________

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0.6

0.7

0.9

0.8

Rolling friction is___________ then sliding friction :

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Greter

Less

Some

Half

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

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

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Centripetal force

Centrifugal force

Perpendicular force

Tension

The weight of a body of mass 20 kg is:

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2 N

10 N

20 N

200 N

The force_________oppose the motion of a moving object is called:

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Momentum

Friction

Power

Work

Co-efficient of friction between iron and iron is:

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1.0

0.62

0.9

1.2

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

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Cart

Earth

Horse

Earth and Cart

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

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Direction

Opposite

Same

None of these

The force which keeps a body to move in a circle is called

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Gravitational force

Centripetal force

Centrifugal force

Rotational force

The mass of a body

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Decreases when accelerated

Increases when accelerated

Decreases when moving with high velocity

None of the above

The study of motion without reference to mass and force.

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Mechanics

Dynamics

Kinematics

None of these

Which of the following is the unit of momentum?

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Nm

Kg ms^-2

Ns

Ns^-1

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

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