8.17 describe the red-shift in light received from galaxies at different distances away from the Earth The further away a galaxy is the greater its red-shift and hence the faster it is moving away from us. Related Posts:8.03 understand why gravitational field strength, g, varies and know that it is different on…7.12 know the definition of the term half-life and understand that it is different for…8.18 explain why the red-shift of galaxies provides evidence for the expansion of the universe8.02 know that: the universe is a large collection of billions of galaxies, a galaxy is a…4.02 describe energy transfers involving energy stores: energy stores: chemical, kinetic,…2.11 describe the qualitative variation of resistance of light-dependent resistors (LDRs)… stuart2019-06-28T10:17:24+00:00Categories: (d) Cosmology, 8 Astrophysics, Edexcel iGCSE Physics, Uncategorized|Tags: Double, GCSE, GCSE_Physics_SpecPoint, Physics, SpecPoint, Topic: Cosmology| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail