| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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Colour filters work by absorbing certain wavelengths (and colour) and transmitting other wavelengths (and colour). |
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(Physics only) How do colour filters work? students to suggest how they think about why skiers/snowboarders wear yellow googles when light levels are low
use the phet animation to review answers https://phet.colorado.edu/en/simulation/color-vision |
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The colour of an opaque object is determined by which wavelengths of light are more strongly reflected. |
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(Physics only) How is the colour of an opaque object determined? Observe the differences when light shines through opaque and translucent objects |
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If all wavelengths are reflected equally the object appears white. |
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(Physics only) What colour is observed when all wavelengths of light are reflected equally? |
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Objects that transmit light are either transparent or translucent. |
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(Physics only) What is the difference between a transparent and translucent object? |
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Wavelengths that are not reflected are absorbed. |
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(Physics only) What happens to wavelengths of light that are not reflected by an object? Use diagrams to show what happens to the light when different colored objects are observed |
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If all wavelengths are absorbed the objects appears black. |
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(Physics only) What colour is observed if all wavelengths of light are absorbed? Ask students to consider why black and white are often described as shades rather than colours (in terms of light) |
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Students should be able to explain how the colour of an object is related to the differential absorption, transmission and reflection of different wavelengths of light by the object. |
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(Physics only) In terms of light, why does an object appears to be red and translucent? Students should make predictions and then explain why we observe a range of coloured and opaque/translucent objects |
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Students should be able to explain the effect of viewing objects through filters or the effect on light of passing through filters |
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(Physics only) How can an orange light be produced using coloured filters? GF: Suggest why some people are colour blind. You should refer to the cells that detect light in the eye. |
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Students should be able to explain why an opaque object has a particular colour. |
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(Physics only) In terms of light, why does an object appear to be green and opaque? |
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