Key term for OCR GCSE Physics A, used in Practical Activity Groups.
A measure of how quickly light travels through a material; materials with higher values slow light down more.
Optical density appears in OCR GCSE Physics A revision content for Practical skills, especially Practical Activity Groups and Interactions of waves.
Practical skills
Practical Activity Groups • Interactions of waves
Waves in matter
Wave interactions • Ray diagrams construction
Waves in matter
Wave interactions • Ray diagrams and lenses
Waves in matter
Wave interactions • Velocity and effects
Waves in matter
Wave interactions • Interactions with substances
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