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

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

2 / 10

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

Total energy 'increases'

Total energy 'decreases'

Total energy 'remains constant'

First the energy 'increases then it decreases'

3 / 10

Thermal energy is ________.

Kinetic energy

Both kinetic and potential energy

Neither kinetic nor potential energy

Potential energy

4 / 10

Joule is a unit of _______.

Momentum

Work

Force

Power

5 / 10

What is the unit of 'Power'?

Joule

Coulomb

Newton

Watt

6 / 10

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

720 Joules

120 Joules

360 Joules

60 Joules

7 / 10

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

Air-conditioner

Loud Speaker

Battery

Solar Cell

8 / 10

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

6000 Joule

600 Joule

100 Joule

1000 Joule

9 / 10

An object that has kinetic energy must be _______.

at rest

in motion

transferred

lifted above the earth surface

10 / 10

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

Stretching a rubber band

Rolling a bowling ball.

Dropping a pencil.

Turning on a light bulb.

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