There are some BBC Bitesize revision pages that could be useful.
- How is heat (thermal energy) transferred and what factors affect the rate at which heat is transferred?
- What is meant by the efficient use of energy?
- Why are electrical devices so useful?
- How should we generate the electricity we need?
Generating Electricity Part 1: Play Now | Play in Popup | Download
Generating Electricity Part 2: Play Now | Play in Popup | Download
Heat Transfer & Efficiency Part 1: Play Now | Play in Popup | Download
Heat Transfer & Efficiency Part 2: Play Now | Play in Popup | Download
Using Electricity: Play Now | Play in Popup | Download