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6 Radioactivity

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Question 120
F

Two workers are in a laboratory where radioactive sources are used.

Worker A stands near a sealed gamma source.

Worker B spills some radioactive powder, and some of the powder gets onto her hands.

a.

State which worker, A or B, has been contaminated.

[1]
b.

State what is meant by irradiation.

[1]
c.

Worker A does not become radioactive.

Explain why.

[2]
d.

Explain why the hazard to worker B continues after she leaves the laboratory.

[2]
Markscheme

6 Radioactivity Questions

  1. GCSE
  2. /Physics
  3. /6 Radioactivity

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