Unit 2: Energy - Revise This Topic in Four Simple Steps

Here is a list of important points that you should know:

- Define energy
- What is its unit?
- Be able to list the different forms of energy
- Give examples of different sources of energy: renewable and non-renewable
- Understand and explain kinetic energy and potential energy
- Mass as a form of energy
- Describe conversions from one form of energy  to another
- Understand the principle of conservation of energy
- Discuss the efficient use of energy in the home

If you feel you need to revise any of these areas, use the “Learn it” material in Step 2.

Use these notes to help you easily understand the topic.
- Definitions and different forms of energy
- Sources of energy
- Forms of renewable energy
     > Hydropower
     > Tidal power
     > Bioenergy

- Potential and kinetic energy
- Mass as a form of energy
- Principle of conservation of energy    
- Energy conversions
- Interactivity: Appliance energy efficiency
- Efficient energy use in the home

Take a quick review crossword on work and energy or one on sources of energy .

Or go straight to the Test yourself quiz! 

Click here to go to the revisions summary . Print it out and keep it to revise later.