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5.2 Radioactivity

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Question 118

Why are containers made of lead used for the storage and transport of radioactive materials?

A

Lead is a dense material that absorbs ionizing radiation.

B

Lead acts as a catalyst that decreases the half-life of the radioactive material.

C

Lead increases the half-life of the radioactive material to make it safer for longer.

D

Lead reflects the emitted particles back into the nuclei of the radioactive atoms.

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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