Evidence for an expanding universe (9.18P) | Pearson Edexcel International GCSE (9–1) Physics (Modular) — 4XPH1 | KnowledgeSet

Evidence for an expanding universe

Physics · IGCSE · Edexcel · Pearson Edexcel International GCSE (9–1) Physics (Modular) — 4XPH1 · Specification point · 9.18P · Astrophysics · Cosmology

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$9.18P explain why the red-shift of galaxies provides evidence for the expansion of the universe$