Edexcel IGCSE Physics 7.24 Nuclear fusion

Practise describing fusion as small nuclei joining to form a larger nucleus, with mass loss and energy released from the nuclear store.

Exam points

describe fusion as two smaller nuclei joining to make a larger nucleus
link the loss of mass in fusion to energy release, sometimes using E = mc^2
distinguish fusion from radioactive decay as joining nuclei, not spontaneous emission

[Maximum number: 2]

Some of the energy stored in the nuclei of atoms can be used to generate electricity.

Nuclear fusion is another process that could be used to generate electricity.

Describe the process of nuclear fusion.

any two from:

MP1. creation of a (large) nucleus from small nuclei;

MP2. resulting in a loss of mass;

MP3. and the release of energy;

condone "fusing of two nuclei"

accept reference to $\mathrm{E}=\mathrm{mc}^{2}$ condone "converted to energy"

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7.24 Nuclear fusion question 1