S3 Physics - Energy 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Example: fossil fuels (other examples exist) 1. What does non – renewable mean? Give an example of a non renewable energy source. answer Cannot be replaced Example: fossil fuels (other examples exist)

Example: wind / solar/ hydro/ geothermal. 2. What does renewable mean? Give an example of a renewable energy source. answer Can be replaced Example: wind / solar/ hydro/ geothermal. (other examples exist)

Increased levels of carbon dioxide. Pollution from acid rain. 3. Give some examples of problems associated with non renewable energy sources. answer Examples: They will run out. Increased levels of carbon dioxide. Pollution from acid rain.

4. Name some possible environmental effects of nuclear power. answer Example: Dealing with radioactive waste.

5. Which element is used as a fuel in a nuclear power station? answer Uranium

6. Name the process which occurs in a reactor chamber? answer Nuclear fission

7. Name this process? answer Chain reaction

8. Name a fossil fuel? answer Coal, oil and gas.

A fuel made over millions of years from fossilised plants (coal) 9. What is a fossil fuel? answer A fuel made over millions of years from fossilised plants (coal) and sea creatures (oil and gas).

How are fossil fuels used to generate energy? answer They are burned to release heat energy. This is used to boil water. The steam drives turbines which produce electricity in a generator

11. Give an environmental impact of wind turbines? answer e.g. Scar on landscape Noise pollution Loss of natural habitat for some animals

12. How does a windfarm produce energy? answer Wind turns blades of turbine. Turbines generate electrical energy.

13. Give some benefits from wind farms. answer Renewable energy source. No production of pollutant gases such as carbon dioxide.

14. What do you call energy from the sun? answer Solar energy

15. Give an example of a benefit from solar energy? answer Renewable energy source Cheap to produce

16. Give a disadvantage of solar energy? answer Intensity of sunlight varies

17. What do you call electrical energy made using water flowing down a hill? answer Hydroelectric

18. Give an advantage of hydroelectric power? answer Renewable source Does not produce pollutant gases such as carbon dioxide.

Chemical  heat  kinetic  electrical energy energy energy energy 19. What energy changes take place in a thermal power station (fossil fuel)? answer Chemical  heat  kinetic  electrical energy energy energy energy

20. What energy changes take place in a hydroelectric power station? answer Potential  Kinetic  Electric

21. What energy changes take place in a nuclear power station? answer Nuclear  heat  Kinetic  electrical energy energy energy energy