Quick questions on Nuclear reactions: fission, fusion and mass-energy - SQA Higher Physics

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?

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State the difference between nuclear fission and nuclear fusion. [2 marks]

What is q2?

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A reaction loses

2.0 \times 10^{-28}\ \text{kg}

of mass. Calculate the energy released. Take

c = 3.0 \times 10^{8}\ \text{m s}^{-1}

What is q3?

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Explain why nuclear reactions release so much more energy than chemical reactions for the same mass of fuel. [1 mark]

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