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

What is the unit of 'Power'?

Newton

Joule

Coulomb

Watt

2 / 10

Thermal energy is ________.

Potential energy

Both kinetic and potential energy

Kinetic energy

Neither kinetic nor potential energy

3 / 10

Law of energy states that energy ______.

cannot be created but can be destroyed

cannot be created or destroyed

can be created but cannot be destroyed

can be created or destroyed

4 / 10

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

Rolling a bowling ball.

Turning on a light bulb.

Stretching a rubber band

Dropping a pencil.

5 / 10

Joule is a unit of _______.

Force

Work

Power

Momentum

6 / 10

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

Air-conditioner

Solar Cell

Battery

Loud Speaker

7 / 10

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

100 Joule

1000 Joule

600 Joule

6000 Joule

8 / 10

An object that has kinetic energy must be _______.

lifted above the earth surface

in motion

at rest

transferred

9 / 10

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

Total energy 'increases'

Total energy 'remains constant'

Total energy 'decreases'

First the energy 'increases then it decreases'

10 / 10

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

120 Joules

360 Joules

60 Joules

720 Joules

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