In 2011, the Fukushima Daiichi nuclear power plant in Japan suffered a major accident resulting in the release of material into the atmosphere. This caused the background radiation levels in countries thousands of kilometres away to increase.
What was transported by wind in the atmosphere to these distant countries to cause this rise in background radiation?
α\alphaα-particles
β\betaβ-particles
γ\gammaγ-rays
radioactive isotopes
484 exam-style questions on CIE IGCSE Physics 5.2 Radioactivity, covering 5.2.1 Background radiation and measuring count rate, 5.2.2a Alpha, beta and gamma emission, 5.2.2b Deflection and ionising effects of nuclear radiation, 5.2.3a Radioactive decay, 5.2.3b Effects of decay on the nucleus and decay equations, 5.2.4a Half-life, 5.2.4b Choosing isotopes for applications, and 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.