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6.2.3a Galaxies and the scale of the Universe

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Question 20

Hubble's law relates the recessional velocity $v\,$ of a galaxy to its distance $d\,$ from Earth.

What is the correct relationship between $v\,$ and $d$ , and what is the unit of the Hubble constant $H_0\,$ in SI base units?

Relationship: $v$ is proportional to $d$ ; SI base unit of $H_0$ is $s−1\text{s}^{-1}$

Relationship: $v$ is proportional to $1d\frac{1}{d}$ ; SI base unit of $H_0$ is $s−1\text{s}^{-1}$

Relationship: $v$ is proportional to $d$ ; SI base unit of $H_0$ is $s−1\text{m s}^{-1}$

Relationship: $v$ is proportional to $1d\frac{1}{d}$ ; SI base unit of $H_0$ is $s−1\text{m s}^{-1}$

Markscheme

6.2.3a Galaxies and the scale of the Universe Questions

IGCSE
Physics
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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