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Colours of Light
This activity introduces the primary and secondary colours of light. Students move coloured torches to mix the light an… full details...
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Colour Mixing
In this demonstration coloured torches are used to show the colours produced when beams of light of the three primary co… full details...
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Refracting Telescope 1 - Objective Lens
This activity explains that two rays from one point on an object will arrive at a lens in parallel if the object is far … full details...
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Refracting Telescope 2 - Eyepiece Lens
This activity explores the function of the small eyepiece lens in a telescope. A simulation involving an object, convex… full details...
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AM Radio
This activity looks at AM radio signals and explains the terms modulate, amplitude modulation, frequency modulation, car… full details...
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Forming an Image
This activity aims to show how to construct a simple ray diagram that places a real image after a convex lens. Pupils i… full details...
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Magnifying Glass
This activity describes how a convex lens can be used as a magnifying glass. Ray diagrams show how the magnifying glass… full details...
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Fibre-optic Cable
A model of light travelling through a fibre optic cable is used to show that light undergoes total internal reflection i… full details...
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Parallel Beams 1
This activity consolidates teaching that a convex lens causes light rays to converge, and shows how it can be used to pr… full details...
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Microwave Reflection Interference
Models of wave superposition demonstrate constructive interference with reflected microwaves, and show that changing the… full details...