Unit 1: Energy
Unit 2: Electricity
Unit 3: Particle Model of Matter
Unit 4: Atomic Structure
Unit 5: Forces
Unit 6: Waves
Unit 7: Electromagnetism
Unit 8: Space
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Blueshift: Star is moving closer to us, shown by the wavelengths getting shorter. Redshift: Star is moving away from us, shown by the wavelengths getting longer.
