GCSE BITESIZE> Science> OCR Gateway Science> Living for the future
Generating electricity
LO: to describe how electricity can be generated
CO: to explain the use of transformers
1. How can you generate electricity?
2. What is the dynamo effect?
3. How can you increase the current made? (3 things)
4. Sketch a diagram of the voltage of direct current
5. What produces direct current?
6. Sketch a diagram of the voltage of alternating current
7. What produces alternating current?
8. Make a flow chart to show how electricity is generated in powerstations. At each stage show how the energy is transferred (useful and wasted).
9. What do step-up transformers do?
10. What do step-up transformers do?
11. When are step-down transformers used?
12. Why are step-down transformers used?
13. When are step-up transformers used?
14. Why are step-up transformers used?
15. What is the equation to calculate efficiency?
GCSE BITESIZE> Science> OCR Gateway Science> Living for the future
Generating electricity
LO: to describe how electricity can be generated
CO: to explain the use of transformers
1. How can you generate electricity?
2. What is the dynamo effect?
3. How can you increase the current made? (3 things)
4. Sketch a diagram of the voltage of direct current
5. What produces direct current?
6. Sketch a diagram of the voltage of alternating current
7. What produces alternating current?
8. Make a flow chart to show how electricity is generated in powerstations. At each stage show how the energy is transferred (useful and wasted).
9. What do step-up transformers do?
10. What do step-up transformers do?
11. When are step-down transformers used?
12. Why are step-down transformers used?
13. When are step-up transformers used?
14. Why are step-up transformers used?
15. What is the equation to calculate efficiency?