Physics GCSE
absorbers
What absorbers means in Physics GCSE, as defined for AQA.
Definition of absorbers
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Reference: AQA
Paper or skin stops alpha, a few millimetres of aluminium stops beta, and thick lead or concrete reduces gamma.
Topics that use absorbers
- Radioactive contamination (AQA GCSE)
Related terms
- alpha inside the body
- contamination
- decay in contact with tissue
- duration of exposure
- internal versus external hazard
- ionising power
- irradiation
- irradiation leaves nuclei unchanged
Using absorbers in the exam
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