In a Pressurised Water Reactor (PWR), the water in the primary coolant loop is kept under extremely high pressure to prevent it from boiling inside the reactor core.
Explain how thermal energy is transferred from the reactor core to the secondary water cycle, and state why these two cycles must be kept physically separate.
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.