Physics GCSE
ionising radiation
What ionising radiation means in Physics GCSE, as defined for AQA.
Definition of ionising radiation
Check what you remember
Read the wording for your board, then hide it and explain ionising radiation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
X-rays and gamma rays are highly penetrating and are classified as ionising radiation, carrying enough energy to knock electrons off atoms.
Topics that use ionising radiation
- Properties of electromagnetic waves 2 (AQA GCSE)
Related terms
- absorption by an aerial
- aerial
- alternating current
- correlation and causation
- electron energy changes
- highly penetrating
- induced alternating current
- matching frequency
Using ionising radiation 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.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge