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6.2.3a Galaxies and the scale of the Universe

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Question 9

A galaxy is moving away from the Earth at a velocity of 4000 km/s.

What is the distance between the Earth and the galaxy? (Take Hubble's 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

5.5×10−25 m5.5 \times 10^{-25}\text{ m}5.5×10−25 m

B

5.5×10−22 m5.5 \times 10^{-22}\text{ m}5.5×10−22 m

C

1.8×1021 m1.8 \times 10^{21}\text{ m}1.8×1021 m

D

1.8×1024 m1.8 \times 10^{24}\text{ m}1.8×1024 m

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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