8.18 explain why the red-shift of galaxies provides evidence for the expansion of the universe

More distant galaxies have greater red-shift and therefore are receding faster because the space between all galaxies is stretching as the universe expands.

1.03 plot and explain distance-time graphs
1.07 plot and explain velocity-time graphs
1.21 describe the forces acting on falling objects (explain why falling objects reach a…
1.26 use the idea of momentum to explain safety features
2.07 explain why a series or parallel circuit is more appropriate for particular…
2.24 explain how positive and negative electrostatic charges are produced on materials by…

Hydr0Gen2019-06-28T10:17:58+00:00Categories: (d) Cosmology, 8 Astrophysics, Edexcel iGCSE Physics, Uncategorized|Tags: Double, GCSE, GCSE_Physics_SpecPoint, Physics, SpecPoint, Topic: Cosmology|

8.18 explain why the red-shift of galaxies provides evidence for the expansion of the universe

8.18 explain why the red-shift of galaxies provides evidence for the expansion of the universe

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