Physics GCSE
halving chains
What halving chains means in Physics GCSE, as defined for AQA.
Definition of halving chains
Check what you remember
Read the wording for your board, then hide it and explain halving chains in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Write the chain out in full, such as 800, 400, 200, 100, so the number of half-lives is on the page.
Topics that use halving chains
Related terms
- background correction
- constant chance of decay
- fraction not number
- net decline as a ratio
- random decay
- steepest curve
- why activity falls
- dice model
Using halving chains in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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