Heat and light energy

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Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.

• 7 sections of explanation, worked examples and diagrams
• 1 practice task with hints and worked answers
• A quiz that marks itself as you go
• Your progress kept across every subject you take

Other lessons in this sub-strand

1. What energy is
2. Forms of energy
3. Kinetic and potential energy
4. Chemical energy
5. Heat and light energy
6. Sound and electrical energy
7. What energy transformation means
8. Energy in a torch
9. Energy in an electric motor
10. Energy in a generator
11. Energy from the sun
12. Energy transformation chains
13. Energy in living things
14. The law of conservation of energy
15. Useful and wasted energy
16. Showing energy on a diagram
17. Building an energy device
18. Energy transformations at home
19. Using energy carefully
20. Where Kenya gets its energy