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6.5 Uses and dangers of radioactivity

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Question 46

In a pressurized water reactor, a uranium-235 ( $235U^{235}\text{U}$ ) nucleus undergoes fission after capturing a thermal neutron, splitting into smaller daughter nuclei and releasing further neutrons.

These released neutrons have the potential to initiate a chain reaction.

Explain how a chain reaction occurs in this context.

[2]

Markscheme

6.5 Uses and dangers of radioactivity Questions

GCSE
Physics
6.5 Uses and dangers of radioactivity

94 exam-style questions on Edexcel GCSE Physics 6.5 Uses and dangers of radioactivity. Each one has a worked solution and a mark scheme showing where the marks go.

6.5 Uses and dangers of radioactivity

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6.5 Uses and dangers of radioactivity

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Question 46

These released neutrons have the potential to initiate a chain reaction.

Explain how a chain reaction occurs in this context.

[2]

Markscheme

6.5 Uses and dangers of radioactivity Questions

GCSE
Physics
6.5 Uses and dangers of radioactivity

94 exam-style questions on Edexcel GCSE Physics 6.5 Uses and dangers of radioactivity. Each one has a worked solution and a mark scheme showing where the marks go.