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

Question # 1

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

Choose an answer

45^o

90^o

60^o

180^o

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Question # 2

Work is done when force displace inits own _____________

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Way

Method

Direction

None

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Question # 3

The ability of a body to do work is known as

Choose an answer

power

energy

kinetic energy

potential energy

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Question # 4

A temperature rise in the environment disturbs life called:

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Air pollution

Land pollution

Noice pollution

Thermal pollution

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Question # 5

Fossil fuels are usually:

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Carbon di oxide

Hydrogen

Hydrocarbons

Carbon monoxide

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Question # 6

If mass of body is 10 kg travelling with speed of light, how much energy is generated?

Choose an answer

E = 9 × 1017 J

E = 9 × 1015 J

E = 9 × 1018 J

E = 9 × 1016 J

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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

Above of mass 50 kg is raised to a height of 3m. what is its P.E

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500 J

1000 J

1500 J

2000 J

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Question # 9

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

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Electric Bulb

Electric generator

Photocell

Electric cell

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Question # 10

O maximum height the P.E of the body is:

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Zero

Maximum

Minimum

None of these

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Question # 11

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 # 12

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 # 13

The energy stored in a dam is:

Choose an answer

Electric energy

Potential energy

Kinetic energy

Thermal energy

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