Energy

Question 1

What are the different types of energy?

Answer 1

Sound energy
Light energy 
Thermal energy
Elastic potential energy
Gravitational potential
Kinetic energy
Chemical energy
Nuclear energy

Question 2

What is the unit of energy?

Answer 2

The unit of energy is Joules.

Question 3

What is the law of conservation of energy?

Answer 3

The law of conservation of energy states that the total energy of an isolated system remains constant.

Question 4

What is meant by energy dissipation?

Answer 4

A process which energy is transformed from some initial form to some final form.

Question 5

What is a renewable source of energy and what is a non renewable source of energy?

Answer 5

A renewable source of energy is where energy can be used again whereas non renewable means it can’t be used again.

Question 6

Give 1 advantage and 1 disadvantage of renewable energy

Answer 6

Advantage- can be used more than once

Disadvantage- difficult to generate the quantities of energy

Question 7

Name 1 advantage and 1 disadvantage of non renewable energy

Answer 7

Advantage- fossil fuels are a relatively cheap fuel and readily available
Disadvantage- can not be replenished in a short period of time

Question 8

Give 1 different between power and energy

Answer 8

Power measures the rate of energy transfer.

Question 9

What is the formula for energy?

Answer 9

Force X distance