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6.2.3a Galaxies and the scale of the Universe

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Question 38

What is a light-second?

A

the time taken for light to travel 3×108 m3 \times 10^8 \text{ m}3×108 m in a vacuum

B

the time taken for light to travel from the Moon to the Earth

C

the distance travelled in a vacuum by light in one second

D

the speed of light in a vacuum

Markscheme

6.2.3a Galaxies and the scale of the Universe Questions

  1. IGCSE
  2. /Physics
  3. /6.2.3a Galaxies and the scale of the Universe

59 exam-style questions on CIE IGCSE Physics 6.2.3a Galaxies and the scale of the Universe. Each one has a worked solution and a mark scheme showing where the marks go.

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