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Physics 9th Class English Medium Unit 6 Online Test MCQs With Answers

Question # 1

From following, which one is a renewable source of energy?

Choose an answer

Coal

Gas

Sunlight

Petrolum

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Question # 2

Fossil fuels are usually:

Choose an answer

Carbon di oxide

Hydrogen

Hydrocarbons

Carbon monoxide

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Question # 3

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

Choose an answer

Electric Bulb

Electric generator

Photocell

Electric cell

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Question # 4

The power of electric kettle is 500W and takes 2s to heat up, find heat generated?

Choose an answer

E = 250 w

E = 1000 w

E = 10000 J

1KJ

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Question # 5

The rate of doing work is called :

Choose an answer

Power

Work

Efficiency

None of above

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Question # 6

The tendency of doing work is called :

Choose an answer

Time

Energy

Force

Area

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Question # 7

Kinetic and potential energy are the kinds of energy:

Choose an answer

Chemical

Nuclear

Light

Mechanical

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Question # 8

The kinetic energy of a body of mass 2 kg is 25J, its speed is

Choose an answer

5 ms-1

12.5 ms-1

25 ms-1

50 ms-1

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Question # 9

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 # 10

The unit of work is :

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Question # 11

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 # 12

How many components are there of a solar heating system?

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Question # 13

Work done is maximum when angle between force and displacement is:

Choose an answer

45°

0°

60°

90°

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