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

Question # 1

The work is negative if the angle between force and displacement is:

Choose an answer

0°

45°

90°

180°

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Question # 2

When equal opposite forces are added then the resultant force is ______________

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Double

Triple

Zero

None of these

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Question # 3

Which one box is used to keep food hot and ice cream cold for long period?

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Iron box

Aluminium Box

Styrofoam box

Plastic box

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Question # 4

A body of mass 5 kg i moving with a velocity of 10 ms^-1. Find the force required to stop it in 2s.

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5 N

25 N

20 N

30 N

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Question # 5

Which pair of physical quantities has same SI unit?

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energy , power

power , work

energy , work

work , momentum

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Question # 6

Which of the substance is heaviest?

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Copper

Mercury

Aluminum

Lead

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Question # 7

__________ is a major source of heat:

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Mercury

Sun

Fire

Moon

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Question # 8

A car starts from rest. It acquires a speed of 25 ms^-1after 20 s. The distance moved by the car during this time is

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31.25 m

250 m

5000 m

500 m

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Question # 9

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

Choose an answer

Gravitational force

Centripetal force

Centrifugal force

Rotational force

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Question # 10

At a height of 30 km, atmospheric pressure is:

Choose an answer

101300 Pa

1000 Pa

10000 Pa

101325 Pa

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Question # 11

It is easy to turn a steering wheel by applying a:

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Torque

Force

Couple

Momentum

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Question # 12

Unit of pressure is :

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N/ m

m/N2

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Question # 13

A body is said to be in __________ equilibrium if after a slight tilt return to its previous position:

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Stable

Unstable

Neutral

None

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