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6.5 Uses and dangers of radioactivity

6.5 Uses and dangers of radioactivity

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Question 30

Inside a nuclear fission reactor, a single fission event of a uranium-235 nucleus produces a tiny amount of thermal energy. Yet, the reactor core can continuously generate hundreds of megawatts of power to supply the national grid.

The electrical demand from the grid fluctuates throughout the day.

Explain:

  • how a continuous chain reaction is established to release vast quantities of energy
  • how control rods are adjusted to regulate the rate of energy output when the grid's electrical demand changes.
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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. Each one has a worked solution and a mark scheme showing where the marks go.

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