Refraction

Emma Boxley
Mind Map by , created over 6 years ago

AQA IGCSE Physics (EOY exams yr 8) Mind Map on Refraction, created by Emma Boxley on 05/06/2013.

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Emma Boxley
Created by Emma Boxley over 6 years ago
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1 Websites
1.1 http://lgfl.skoool.co.uk/content/keystage3/Physics/pc/learningsteps/RFRLC/launch.html
2 Refraction is the bending of light as it passes from one medium into another.
3 It occurs because the speed of light changes.
4 Light travels faster in air than in glass or water.
5 When light travels from a less dense medium into a more dense one it is bent towards the normal, and vice versa.
6 Light is not refracted if it enters the new medium at 90 degrees to the surface, i.e. if it is travelling along a normal.
7 A swimming pool looks shallower than it really is because of refraction.
8 A pencil in a beaker of water looks bent because of refraction.

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