Physics GCSE
the normal
What the normal means in Physics GCSE, as defined for AQA.
Definition of the normal
Check what you remember
Read the wording for your board, then hide it and explain the normal in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The line drawn at 90° to the surface where the ray strikes.
Topics that use the normal
- Visible light (physics only) (AQA GCSE)
Related terms
- absorption
- colour filters
- diffuse reflection
- frequency and wavelength
- heating by absorbed light
- law of reflection
- opaque surfaces
- selective reflection
Using the normal 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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