topic 1 physics notes
- Created by: Farah
- Created on: 19-02-13 17:16
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- TOPIC 1
- geocentric model- the sun, moon & planets orbited the earth
- heliocentric model- Earth & planets orbited the sun
- visible light- given off so you can see objects
- naked eye- map positions
- Transverse waves are light waves travel 90 degrees
- longitudinal waves-sound waves travel in 1 direction
- reflection- when a wave hits a boundary between one medium & another.
- refracted- changes direction
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