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6.2.3a Galaxies and the scale of the Universe

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Question 24

A galaxy is 2.0 × 1020 km from the Earth.

At which speed is the galaxy moving away from the Earth?

(Take the Hubble constant to be H0=2.2×10−18 s−1H_0 = 2.2 \times 10^{-18}\text{ s}^{-1}H0​=2.2×10−18 s−1)

A

440 km/s440\text{ km/s}440 km/s

B

4400 km/s4400\text{ km/s}4400 km/s

C

440 m/s440\text{ m/s}440 m/s

D

4400 m/s4400\text{ m/s}4400 m/s

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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