Question # 1

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

Kilowatt - hour is unit of _____________

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Power

Energy

Work

K.e

Rate of doing work is called:

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Energy

Torque

Power

Moment

A crate is moved by pulling the rope attached to it. it moves 10 m on straight horizontal read by a force of 100 N. How much work will be done when the rope is making an angle of 30° with the road?

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5 Joules

86 Joules

707 Joules

866 Joules

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

Einstein's mass-energy equation is

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E = mc

E = mc2

E = 2mc

E = m2c

Solar energy is a type of.

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Renewable

Non-renewable

Natural

None

The source of energy that can be renewed are called:

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Renewable source

Non-renewable

They RAE Naturally found

None

The energy present in our food is:

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Mechanical energy

Gravitational potential energy

Chemical energy

Nuclear energy

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

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Electric Bulb

Electric generator

Photocell

Electric cell

How many components are there of a solar heating system?

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2

3

4

5

If mass of a body becomes half that its energy K.E will be reduce to:

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Zero

Half

Double

4 Times

In Einstein's mass-energy equation ,c is the

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Speed of sound

Speed of light

Speed of electron

Speed of Earth

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

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