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6.5 Uses and dangers of radioactivity

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Question 17

Nuclear fusion involves forcing two positively charged nuclei, such as deuterium (12H^2_1\text{H}12​H) and tritium (13H^3_1\text{H}13​H), together to form a larger helium nucleus.

Explain why an extremely high temperature is required for this fusion reaction to occur.

[3]
Markscheme

6.5 Uses and dangers of radioactivity Questions

  1. GCSE
  2. /Physics
  3. /6.5 Uses and dangers of radioactivity

94 exam-style questions on Edexcel GCSE Physics 6.5 Uses and dangers of radioactivity, covering 6.5.1 Uses of radioactivity, 6.5.2 Dangers of ionising radiation and precautions, 6.5.3 Half-life and radiation dangers, 6.5.4 Safety precautions for radiation exposure, and 6.5.5 Contamination and irradiation. Each one has a worked solution and a mark scheme showing where the marks go.

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