Edexcel IGCSE Physics 7.16 Dangers of ionising radiation
Practise explaining radiation risks to people and the precautions used for sources, waste, medical tracers, cosmic rays and contaminated air.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- link ionising radiation to cell damage, tissue damage, mutation or cancer risk
- choose source precautions using time, distance, shielding, direction and handling tools
- explain waste or radon hazards using half-life, leakage, containment and internal alpha exposure
7.16 Dangers of ionising radiation question 1
[Maximum number: 5]
Some radioactive waste from nuclear power stations has a very long half-life.
Discuss precautions that must be taken when disposing of this radioactive waste.
Any five from:
- strong containers
- containers cannot rust
- rust-proof containers are expensive / difficult to manufacture
- security of waste site
- dilution in sea water
- leakage into water table
Accept:
- location that prevents rust
- low earthquake risk
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