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9th Class Physics Chapter 3 Dynamics English Medium KPK Boards Online Mcqs MCQs With Answers

Question # 1

Action and Reaction are always on:

Choose an answer

Same body

Different bodies

Any body

None of these

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Question # 2

Why a coin stacked over remain undisturbed on pulling the paper strips quickly?

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Due to charge

Due to motion

Due to inertia

Due to material

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Question # 3

All forces are example of contract forces except:

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Air resistance

Tensional

Push force

Gravitational

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Question # 4

Which of the following is the unit of momentum?

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kgms^-2

Ns^-1

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Question # 5

To every action there is always an equal but __________ reaction:

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Same

Parallel

Opposite

Equal

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Question # 6

Mass is measured by:

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Spring balance

Measuring cylinder

Physical Balance

None of these

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Question # 7

Friction causes _____________

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Heat

Light

Mass

Weight

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Question # 8

When a force of 4 Newton is applied on a body of mass 2 kg, the acceleration produced in it will be:

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2 ms^-2

4 ms^-2

8 ms^-2

6 ms^-2

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Question # 9

When a block a place on the surface its weight produce.

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Tension

Momentum

Inertia

Normal reaction

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Question # 10

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

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Direction

Opposite

Same

None of these

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Question # 11

The direction of momentum is

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opposite to motion

Along the velocity

Perpendicular to motion

None of these

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Question # 12

Waking on earth is the example of

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1st law of motion

Second law of motion

Third law of motion

Law of Momentum

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Question # 13

The Atwood machine can be used to find the acceleration due to gravity using the equation

Choose an answer

g = 2 (m1 x m2)/(m1 + m2) a

g = (m1 - m2)/(m1 + m2) a

g = (m1 + m2)/(m1 - m2) a

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