Question # 1

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

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E = 9 × 1017 J

E = 9 × 1015 J

E = 9 × 1018 J

E = 9 × 1016 J

Which of the following is non-renewable fossil fuel?

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Oil

Coal

Gas

All of these

Kilowatt - hour is unit of _____________

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Power

Energy

Work

K.e

if a body of a mass 'm' is moving with velocity 'v' then its K.E. is given by

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K.E. = 1/2 mv

K.E. = 1/2 mv2

K.E. = mv2

K.E. = 1/2 m2v

When a hammer raised up its energy will be:

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Mechanical energy

Gravitational potential energy

Chemical energy

Nuclear energy

One Megawatt is equal to :

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1 × 106 w

1 × 102 kw

1015 w

Nil

The potential energy of a body of mass 'm' placed at a height 'h' above the surface of earth is equal to

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P.E. = mg

P.E. = mgh

P.E. = 3mgh

P.E. = 2mgh

Ability of body to do work due to its height is called.

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potential energy

kinetic energy

gravitational potential energy

elastic potential energy

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

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Coal

Gas

Sunlight

Petrolum

SI unit of work is:

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Joule

Coulomb

Ampere

Kelvin

The energy possessed by a body due to height is called:

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P.E

K.E

Both

None

Which quantity is scalar?

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Force

Power

Velocity

Torque

How many components are there of a solar heating system?

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2

3

4

5

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

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