Quiz 1: Revision on Energy [NT Science]

What is energy?

• The ability to move

• The ability to do work

• The ability to use machines

• The ability to generate electricity

What is the unit of measurement for energy?

• Watt

• Joule

• Volt

• Newton

What is the symbol for the unit of measurement of energy?

• W

• J

• N

• G

Answer explanation

The unit of measurement of energy is Joule, represented by the symbol J.

Which of the following is NOT a form of potential energy?

• Chemical potential energy

• Elastic potential energy

• Gravitational potential energy

• Kinetic potential energy

What is the form of energy that allows us to cook food?

Which of the following is NOT a form of energy?

• Light

• Sound

• Vibration

• Electrical

Answer explanation

Vibrations are not a form of energy. It is used by waves to transfer energy.

How is thermal energy transferred?

• From lower temperature to higher temperature

• From higher temperature to lower temperature

Which of the following is an example of chemical potential energy?

• A battery

• A moving car

• A stretched rubber band

• A book on a shelf

Answer explanation

A moving car contains kinetic energy.

A stretched rubber band contains elastic potential energy.

A book on a shelf contains gravitational potential energy.

What is temperature?

• The degree of coldness of an object

• The degree of hotness of an object

• The degree of change in coldness of an object

• The degree of change in hotness of an object

What does the principle of conservation of energy state?

• Energy can be destroyed

• The total energy before and after conversion is the same

• Energy cannot be converted from one form to another

• Energy can be created

Answer explanation

The principle of conservation of energy states that:

1. 1. energy cannot be created or destroyed

2. 2. energy can be converted from one form to another

3. 3. the total energy before and after the conversion of energy is the same