Figure 7 shows a safety sign on the door of a laboratory where radioactive materials are used - Edexcel - GCSE Physics Combined Science - Question 4 - 2022 - Paper 1
Question 4
Figure 7 shows a safety sign on the door of a laboratory where radioactive materials are used.
(i) State one way that radioactivity can be dangerous to humans.
(ii... show full transcript
Worked Solution & Example Answer:Figure 7 shows a safety sign on the door of a laboratory where radioactive materials are used - Edexcel - GCSE Physics Combined Science - Question 4 - 2022 - Paper 1
Step 1
State one way that radioactivity can be dangerous to humans.
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Answer
Radioactivity can cause cell damage, which may lead to cancer or radiation sickness. Exposure to ionising radiation can damage the DNA within cells, potentially resulting in mutations or chromosomal damage.
Step 2
State one piece of equipment that can be used to measure radioactivity.
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Answer
One common piece of equipment used to measure radioactivity is the Geiger-Muller (GM) tube or counter.
Step 3
Give two other ionising radiations.
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Answer
Two other examples of ionising radiations are beta (β) radiation and gamma (γ) radiation.
