GCSE Physics – Nuclear fission and nuclear fusion

Last updated: 01/06/2020

Learning Objectives1

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  1. Current
  2. Review
  3. Answered
  1. How many main types of nuclear reactions are there?

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  2. What do nuclear reactions involve?

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  3. What does fission mean?

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  4. What is nuclear fission?

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  5. What happens to the nucleus during nuclear fission?

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  6. What must normally happen for fission to occur?

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  7. What is nuclear fission used for?

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  8. What main products does the nucleus undergoing fission split into?

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  9. What is the name for released neutrons causing more fission?

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  10. What are the sizes of the produced nuclei?

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  11. What do we call the two produced nuclei from fission?

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  12. What can the released neutrons then do?

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  13. What do we call a fission caused by neutron absorption?

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  14. What type of energy do all fission products have?

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  15. Give an example of a large unstable nucleus.

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  16. Give an example of a large unstable nucleus.

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  17. What is the name for nuclear fission happening on its own?

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  18. Why do nuclear reactions need to be controlled?

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  19. What happens when a nuclear reaction isn’t controlled?

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  20. Where is the chain reaction controlled?

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  21. What is the opposite of nuclear fission?

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  22. What happens in nuclear fusion?

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  23. What else is released during nuclear fusion?

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  24. What else is emitted during a nuclear fission?

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  25. Why don’t we use nuclear fusion to provide energy yet?

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