Question # 1

Formula of weight is derived from which law?

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First law

Second law

Third law

Law of conservation of momentum

A mass of a body:

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Decreases when accelerated

Increases when accelerated

Decreases when moving with velocity

None of the above

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

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Centripetal force

Centrifugal force

Perpendicular force

Tension

Which machine is used to find acceleration due to gravity?

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Centrifuge

Atwood machine

Hydraulic machine

Washing machine

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

If the weight body is greater then tension then body will.

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Move upward

move downward

not move

None

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

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Air resistance

Tensional

Push force

Gravitational

Relation between force and momentum is:

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ΔP/F

ΔP/t

ΔPF

None

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

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Inertia

Gravity

Car force

Nil

All forces are example of contract forces except:

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Air resistance

Tensional

Push force

Gravitational

If the force of 25 N is acting along the string to balance the weight then tension in string is

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25 N

50 N

Zero

None

Which of the following relation is correct?

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F = m/a

F = m-a

F = ma

F = m + a

Momentum is defined as the product of

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Mass and acceleration

Force and acceleration

Mass and velocity

Force and velocity

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

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