Granite bedrock is a well-known source of terrestrial background radiation. Identify one other natural source of background radiation (excluding radiation originating directly from rocks or soil).
Commercial nuclear power plants rely on the fission of heavy, unstable nuclei. State the name of one specific isotope commonly used as the primary fuel in these fission reactors.
The heat required to generate steam in a nuclear power plant comes from a sustained, regulated reaction. Describe the physical process of a controlled nuclear fission chain reaction within a reactor core.
Stellar nucleosynthesis and future fusion reactors, such as tokamaks, rely on the fusion of light elements. Explain, in terms of mass and energy, how the process of nuclear fusion leads to the release of energy.
A key argument for some alternative nuclear technologies is that their byproducts have significantly shorter half-lives than traditional high-level waste. Explain the environmental or safety advantages of radioactive waste having a shorter half-life.
Practise AQA GCSE Physics Hazards and uses of radioactive emissions and of background radiation (physics only) with exam-style questions for Foundation and Higher tier. 16 questions covering Background radiation, Different half-lives of radioactive isotopes, and Uses of nuclear radiation, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.