GCSE Physics – Background radiation

Last updated: 01/06/2020

Learning Objectives

-I can recall the different sources of background radiation
-I can describe what may affect a person dose of radiation
-I can recall that different isotopes have different half lives
-I can describe the different uses of radioactivity

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  1. Current
  2. Review
  3. Answered
  1. How common is background radiation?

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  2. Where does background radiation come from?

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  3. Where does background radiation come from?

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  4. Where does background radiation come from?

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  5. Where does background radiation come from?

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  6. What type of radiation has the highest penetrating power?

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  7. What type of radiation has the middle penetrating power?

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  8. What type of radiation has the lowest penetrating power?

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  9. What type of radiation has the highest ionising power?

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  10. What type of radiation has the middle ionising power?

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  11. What type of radiation has the lowest ionising power?

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  12. What does radiation do to the body?

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  13. What affects background radiation?

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  14. What else affects radiation dose?

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  15. Why are gamma sources used within the body?

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  16. Why is gamma radiation safer than alpha radiation inside the body?

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  17. Why is alpha radiation safer than gamma radiation outside the body?

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  18. Why would a substance with a low half life be used medically?

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  19. Where is nuclear radiation used?

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  20. Name one example of nuclear radiation in medicine.

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  21. Name another example of nuclear radiation in medicine.

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  22. Describe the risk of background radiation to the general public.

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  23. Why do we want to reduce radiation dose as much as possible?

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  24. What is the range of half-life of radioactive isotopes?

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  25. Why are long half-life substances not used within the body?

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