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6.5 Uses and dangers of radioactivity

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Question 30

When a plutonium-239 ( $239Pu^{239}\text{Pu}$ ) nucleus undergoes fission after absorbing a neutron, additional neutrons are released.

These neutrons can initiate a chain reaction.

Describe what is meant by a chain reaction 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

Question bank

6.5 Uses and dangers of radioactivity

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

Question 30

When a plutonium-239 ( $239Pu^{239}\text{Pu}$ ) nucleus undergoes fission after absorbing a neutron, additional neutrons are released.

These neutrons can initiate a chain reaction.

Describe what is meant by a chain reaction 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.