Exam-style question
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What is the role of the strong nuclear force in nuclear fission and fusion?.
- A.It holds the nucleus together
- B.It causes the nucleus to split
- C.It prevents the release of energy
- D.It converts mass into energy
Model answer
What a good answer should say
- It holds the nucleus together
Explanation
Why this works
The strong nuclear force is the force that holds protons and neutrons together in the nucleus. In fission, overcoming this force allows the nucleus to split, while in fusion, it allows the combination of nuclei.
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