Physics GCSE
internal versus external hazard
What internal versus external hazard means in Physics GCSE, as defined for AQA.
Definition of internal versus external hazard
Check what you remember
Read the wording for your board, then hide it and explain internal versus external hazard in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Outside the body a gamma source is the greater hazard because the radiation reaches internal organs, while inside the body an alpha source is far worse.
Topics that use internal versus external hazard
- Radioactive contamination (AQA GCSE)
Related terms
- alpha inside the body
- contamination
- decay in contact with tissue
- duration of exposure
- ionising power
- irradiation
- irradiation leaves nuclei unchanged
- peer review
Using internal versus external hazard in the exam
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