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Motion in the universe

What is a galaxy?

A

A collection of planets orbiting a single star held together by gravity.

B

A collection of planets and moons held together by magnetism.

C

A collection of billions of stars held together by gravity.

D

A collection of billions of stars moving apart because of expansion.

Motion in the universe Flashcards

  1. IGCSE
  2. /Physics
  3. /Motion in the universe

Flashcards for Edexcel IGCSE Physics Motion in the universe, covering the key terms, formulae and methods you need to recall for Paper 1 and Paper 2. 23 cards, matched to the Edexcel IGCSE Physics (4PH1) specification.