Combined Science GCSE
Source selection
What Source selection means in Combined Science GCSE, as defined for AQA.
Definition of Source selection
Check what you remember
Read the wording for your board, then hide it and explain Source selection in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Choosing a source whose radiation has the property the task needs, such as beta for thickness monitoring, alpha for a smoke detector and gamma for sterilisation.
Topics that use Source selection
- Radioactive decay and nuclear radiation (AQA GCSE)
Related terms
- Activity
- Alpha radiation
- Becquerel
- Beta radiation
- Count rate
- Gamma radiation
- Ionising radiation safety
- Random nature of radioactive decay
Using Source selection 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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