Physics unit 1?

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  • Created by: Tasnim S
  • Created on: 23-12-12 16:26

The solar system

Geocentric model: The earth was the centre of the solar system Ptolemy- used measurements of the movements of objects in the sky to explain how the sun and the moon, moved in orbits

Heliocentric model: sun centred solar system (Copernicus)
Galileo: discovered 4 of Jupiter's moons by plotting movements(not everything orbited the earth)

This supported Copernicus' theory and more discoveries were made:


  • Dwarf planet Pluto
  • Neptune
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