Physics: Basics of Energy Quiz- Grade 7 & 8

Basics of Energy Quiz

The quiz is designed for the various curriculum students such as GCSE, IGCSE, ISC, IB, ICSE, CBSE, National Curriculum England.
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Quiz Level: Grade 7 & 8

Total Questions: 10

1 / 10

An object that has kinetic energy must be _______.

at rest

lifted above the earth surface

in motion

transferred

2 / 10

Law of energy states that energy ______.

can be created but cannot be destroyed

cannot be created or destroyed

can be created or destroyed

cannot be created but can be destroyed

3 / 10

Which of the following device converts chemical energy in to electrical energy?

Solar Cell

Air-conditioner

Loud Speaker

Battery

4 / 10

Find the Kinetic Energy if the mass of an object is 20 kg, and the velocity is 6 m/s?

120 Joules

720 Joules

60 Joules

360 Joules

5 / 10

What is the unit of 'Power'?

Watt

Joule

Coulomb

Newton

6 / 10

Joule is a unit of _______.

Power

Work

Force

Momentum

7 / 10

How much energy does a 100 Watt electric bulb transfers in 1 minute?

6000 Joule

100 Joule

600 Joule

1000 Joule

8 / 10

Which of the following is the best example of increasing an object's potential energy?

Stretching a rubber band

Dropping a pencil.

Rolling a bowling ball.

Turning on a light bulb.

9 / 10

What is the total energy when an object falls freely towards the ground?

Total energy 'decreases'

Total energy 'remains constant'

Total energy 'increases'

First the energy 'increases then it decreases'

10 / 10

Thermal energy is ________.

Kinetic energy

Potential energy

Both kinetic and potential energy

Neither kinetic nor potential energy

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