Nuclear fission and fusion — WJEC GCSE Physics
In summary: Nuclear fission and fusion is a key topic in WJEC GCSE Physics. Key exam tip: Ensure you can distinguish between the splitting of a nucleus (fission) and the joining of nuclei (fusion)
Exam Tips for Nuclear fission and fusion
- Ensure you can distinguish between the splitting of a nucleus (fission) and the joining of nuclei (fusion)
- Be prepared to explain why control mechanisms are essential in nuclear fission reactors
- Remember that mass-energy equivalence is a key feature of fusion
Common Mistakes
- Confusing the processes of fission and fusion
- Failing to mention the conversion of mass to energy in fusion
- Omitting the necessity of controlling chain reactions in fission reactors
Marking Points
- Recognition that some nuclei are unstable and may split
- Understanding that fission can lead to chain reactions
- Knowledge that fission releases energy
- Requirement for control mechanisms in fission reactors
- Description of the nuclear fusion process
- Understanding that mass is converted into energy in fusion
← Back to Physics WJEC GCSE Specification · All Physics Topics