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Question 19M.3.SL.TZ2.14b

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.3.SL.TZ2.14b
Level SL Paper 3 Time zone TZ2
Command term Outline Question number b Adapted from N/A
b.
[Maximum mark: 1]
19M.3.SL.TZ2.14b

The Hubble constant is 2.3 × 10-18 s-1.

(b)

Outline how observations of spectra from distant galaxies provide evidence that the universe is expanding.

[1]

Markscheme

all distant galaxies exhibit red-shift ✔

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