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5.2 Radioactivity

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Question 57

A high school science teacher is preparing radioactive sources for a class demonstration. The teacher must follow several safety rules while handling these items.

Three of the safety rules are:

  1. Point the source away from yourself and others at all times.
  2. Wear rubber-soled shoes to prevent electric shocks from lab equipment.
  3. Store the radioactive sources inside a thick lead-lined container when not in use.

Which safety rules are specifically for protection against the effects of ionising radiation?

A

1, 2 and 3

B

1 and 2 only

C

1 and 3 only

D

2 and 3 only

Markscheme

5.2 Radioactivity Questions

  1. IGCSE
  2. /Physics
  3. /5.2 Radioactivity

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.

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