Uses and risks of radiation Quiz
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5 questions, one answer each
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1. Which radiation is used to treat deep tumours in radiotherapy?
- A. Alpha
- B. Visible light
- C. Gamma
- D. Radio waves
2. Why do workers handle radioactive sources with tongs?
- A. To keep the source warm
- B. To increase their distance from the source
- C. To make the source ionise more
- D. To stop the source decaying
3. What is the main function of a film badge?
- A. To shield the wearer from radiation
- B. To measure the half-life of a source
- C. To record the total radiation dose received
- D. To kill microbes on the skin
4. Why is gamma radiation used for sterilising sealed surgical equipment?
- A. It passes through the packaging and kills microbes
- B. It melts the plastic
- C. It makes the equipment radioactive
- D. It is stopped by paper
5. Which is a harmful effect of ionising radiation?
- A. It cools the body
- B. It makes bones stronger
- C. It speeds up all chemical reactions
- D. It can damage DNA and cause cancer