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9th Class Physics Chapter 6 Work and Energy English Medium KPK Boards Online Mcqs MCQs With Answers

Question # 1

What kind of waste is produced by nuclear power plant?

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Carbon di oxide

Radio active

Fuels

Toxic material

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Question # 2

If the velocity of the body becomes double then its kinetic energy will:

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Remain the same

Become double

Become four times

Become half

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Question # 3

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

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0°

45°

90°

180°

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Question # 4

The energy stored in coal is:

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Heat energy

Kinetic energy

Chemical enegy

Nuclear energy

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Question # 5

A body possesses if it is capable to do work:

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Energy

Power

Force

All

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Question # 6

A solar cell is also called:

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Photo cell

Generator

Battery

None

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Question # 7

The work done in lifting a brick of mass 2 kg through a height of 5 m above ground will be:

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2.5 J

10 J

50 J

100 J

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Question # 8

When a body is lifted through a height the work done on its appears in the form of its:

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Kinetic energy

Potential energy

Elastic potential energy

Geothermal energy

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Question # 9

The work done will be zero when the angle between the force and the distance is:

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45^o

90^o

60^o

180^o

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Question # 10

If the direction of motion of the force is perpendicular to the direction of motion of the body, then work done will be

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Maximum

Minimum

Zero

None of these

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Question # 11

Which one of the following converts light energy into electrical energy:

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Electric Bulb

Electric Generator

Photocell

Electric generator

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Question # 12

The S.I unit of work is :

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Question # 13

The ability of a body to do work is known as

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power

energy

kinetic energy

potential energy

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