Physics GCSE
dose versus activity
What dose versus activity means in Physics GCSE, as defined for AQA.
Definition of dose versus activity
Check what you remember
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Reference: AQA
Dose describes the risk of harm to body tissue from being exposed to radiation, while activity counts decays per second in the source.
Topics that use dose versus activity
- Background radiation (AQA GCSE)
Related terms
- background correction
- occupational dose
- risk to tissue
- altitude and cosmic rays
- dose monitoring
- man-made sources
- natural sources
- radon and geology
Using dose versus activity in the exam
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