Question # 1

Newton related inertia of the body with its

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Weight

Mass

Density

Force

Law of motion was presented by the scientist.

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Einstein

Newton

Galileo

Archimedes

If the mass of moving body in a circle is doubled then centripetal force wil be:

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Doubled

Half

4 times

Same

Coefficient of friction between tyre and dry road is.

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0.6

1

0.05

0.2

Which of the following material lowers friction when pushed between metal plates:

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Water

Fine marble poder

Air

Oil

The rage of change of momentum is equal.

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Mass

Force

Weight

None

The unit of momentum is :

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kgms^-1

kgms^-2

m sec

None

Outer edge of the curved road is elevated to prevent

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Circular motion

Centripetal force

Skidding

Protection

The study of motion without reference to mass and force.

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Mechanics

Dynamics

Kinematics

None of these

Friction is due to

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Roughness

Shape

Smoothness

None

All divers need to wear seat belt because of effect of:

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Inertia

Gravity

Car force

Nil

When the cyclist stop pedalling, bicycle stops due to :

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Friction

Momentum

Weight

Mass

Rate of change of momentum equals:

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Displacement

Acceleration

^Force

Velocity

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

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