Types of Energy

Question 1

How many types of energy are there?

Answer 1

Nine

Question 2

What are the nine types of energy?

Answer 2

Elastic Potential, Kinetic, Light, Sound, Electricial, Gravitational Potential, Chemical Stored, Thermal (Heat), Nuclear

Question 3

What is the ‘Conservation of Energy?’

Answer 3

Energy cannot be created or destroyed, but it can be transferred

Question 4

In any energy change there is always what?

Answer 4

Some wasted energy

Question 5

What is happening in this example: Electricity = Light + Heat

Answer 5

Heat is wasted and transferred to the surroundings, which then becomes very difficult to use

Question 6

How do you work out ‘energy efficiency’?

Answer 6

Useful output energy divided by total input energy

Question 7

What is useful energy measured in?

Answer 7

Joules (J)

Question 8

What does energy efficiency not have?

Answer 8

Any units

Question 9

What actually is ‘Energy Efficiency’?

Answer 9

It is a number between 0 and 1 which can be converted into a percentage by multiplying by 100

Question 10

Give two advantages of using low energy appliances

Answer 10

Reduce the amount of carbon dioxide and save money

Question 11

What is the ‘Law of conservation of energy’?

Answer 11

This means that energy cannot be created or destroyed. It can only be transferred from one place to another or transformed from one form to another