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Visible light, colour and dispersion · GCSE Physics · Courselo

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GCSE Physics
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Waves and the electromagnetic spectrum

Visible light, colour and dispersion

Waves and the electromagnetic spectrum · Lesson 8 of 8

Lesson 8 of 8

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Unit 7

Waves and the electromagnetic spectrum

8 lessons · 10 h of study

Wave properties, wave speed and wavefront models1 h 15 min of study
Reflection, refraction and total internal reflection1 h 30 min of study
Lenses, image formation and the eye1 h 30 min of study
Sound waves, ultrasound and seismic waves1 h 15 min of study
The electromagnetic spectrum, communication and hazards1 h 30 min of study
Wave practicals and measuring wave properties1 h 30 min of study
Black-body radiation45 min of study
Visible light, colour and dispersionReading · 0%

This unit is ≈15% of the GCSE Physics, across 8 lessons. Full syllabus

Lesson 8 of 8 · Waves and the electromagnetic spectrum

Visible light, colour and dispersion

3 quick checks<1% of the testFoundational: Foundational: the groundwork the rest of the unit builds on

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By the end you’ll be able to

Describe white light as a mixture of colours and order the visible spectrum.
Explain dispersion by a prism in terms of different amounts of refraction for different colours.
Predict the colour of objects and filters under different coloured lights.
Distinguish absorption, transmission and reflection when explaining colour.

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Adaptive questions on visible light, colour and dispersion.

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Apply visible-light ideas to simple ray and practical contexts.

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