73293
Descrição
Mapa Mental por Emma Boxley, atualizado more than 1 year ago
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Criado por Emma Boxley
mais de 11 anos atrás
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Refraction
- Websites
- http://lgfl.skoool.co.uk/content/keystage3/Physics/pc/learningsteps/RFRLC/launch.html
- http://lgfl.skoool.co.uk/content/keystage3/Physics/pc/learningsteps/RFRLC/launch.html
- Refraction is the bending of light as it
passes from one medium into another.
- It occurs because the speed of light changes.
- Light travels faster in air than in glass or water.
- When light travels from a less dense medium into a more
dense one it is bent towards the normal, and vice versa.
- 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.
- A swimming pool looks shallower than it really is because of refraction.
- A pencil in a beaker of water looks bent because of refraction.
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