Physics GCSE
colour filters
What colour filters means in Physics GCSE, as defined for AQA.
Definition of colour filters
Check what you remember
Read the wording for your board, then hide it and explain colour filters in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A piece of coloured transparent material that transmits the wavelengths of its own colour and absorbs the rest, so the light that comes out is coloured and dimmer.
Topics that use colour filters
- Visible light (physics only) (AQA GCSE)
Related terms
- absorption
- diffuse reflection
- frequency and wavelength
- heating by absorbed light
- law of reflection
- opaque surfaces
- selective reflection
- specular reflection
Using colour filters in the exam
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