Everyone is exposed to background radiation - Edexcel - GCSE Physics - Question 5 - 2013 - Paper 1
Question 5
Everyone is exposed to background radiation. Some of this radiation comes from natural sources.
(a) (i) One example of a source of background radiation that does no... show full transcript
Worked Solution & Example Answer:Everyone is exposed to background radiation - Edexcel - GCSE Physics - Question 5 - 2013 - Paper 1
Step 1
One example of a source of background radiation that does not occur naturally.
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Answer
Any one of the following:
X-ray machines
Smoke alarms
Nuclear weapons
Nuclear power plants
Radioactive waste
These sources do not occur in nature.
Step 2
Explain why there is no radon gas in some other parts of the country.
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Answer
The presence of radon gas is primarily linked to geological factors. Radon is produced from the decay of uranium found in certain types of rocks, such as granite. Therefore, in some areas where granite or uranium-rich rocks are absent or occur in lesser quantities, the levels of radon gas will be significantly lower or non-existent. This geological variation explains the inconsistency of radon presence across different regions.