Cambridge AS & A Level Physics
25.3Hubble's law and the Big Bang theory
Hubble's law and the Big Bang theory in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives
What the syllabus expects you to be able to do.
- 25.3.1Recognise the increase in wavelength of spectral lines from distant objects.
- 25.3.2Use Δλ/λ ≈ Δf/f ≈ v/c for redshift.
- 25.3.3Explain why redshift suggests an expanding Universe.
- 25.3.4Recall and use Hubble's law and explain how it leads to the Big Bang theory.
Lessons
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Redshift, Hubble's law and the expanding Universe
40 min
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Sample question
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