Edexcel IGCSE Physics 7.17 Nuclear reactions as energy sources
Practise recognising nuclear reactions as energy sources, including fusion in the Sun and estimates from energy released per reaction.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- identify the nuclear store as the energy store reduced during fusion in the Sun
- estimate reaction numbers from energy per reaction and round to a stated significant figure
7.17 Nuclear reactions as energy sources question 1
[Maximum number: 1]
Energy is transferred from the Sun to the Earth.
Nuclear fusion happens in the Sun.
Which energy store of the Sun decreases during nuclear fusion?
A
chemical
B
kinetic
C
nuclear
D
thermal
C
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