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A-Level Physics · 25 Astronomy and cosmology

Redshift, Hubble's law, and the Big Bang for A-Level Physics

Redshift, Hubble's law, and the Big Bang is mapped to 25 Astronomy and cosmology in the Cambridge International AS & A Level Physics pathway. Use this public guide to see exactly where the concept fits, what to master, and which GioPhysics resource continues the study sequence.

A2 · A Level extensionGuide 3 of 3

Where this fits

25 Astronomy and cosmology

Curriculum
Cambridge International AS & A Level Physics
Theme or group
A Level extension
Current framework
Examinations in 2025–2027 · Version 1

Standard candles, Wien and Stefan–Boltzmann, Hubble's law, and the Big Bang are Chapter 53.

Mastery checklist

Know what success looks like.

  1. 01

    Identify the observation and the scale on which it is being interpreted.

  2. 02

    Apply the mapped relationship with appropriate astronomical units and assumptions.

  3. 03

    Separate direct evidence from the model-based inference drawn from it.

Exam lens

Build, apply, check.

25 Astronomy and cosmology sits inside A Level extension. Build the concept first, then practise selecting a model, showing working, and checking the final result.

Teaching sequence

25 Astronomy and cosmology

This syllabus point maps to 3 ordered concept guides.

  1. 01Standard candles and cosmic distances
  2. 02Stellar radii with Wien and Stefan-Boltzmann laws
  3. 03Redshift, Hubble's law, and the Big BangCurrent guide

Continue on GioPhysics

Choose the right next step.

The curriculum context stays public. Lesson and presentation access follows the existing GioPhysics membership rules.

LearnOpen the mapped lessonRedshift, Hubble's law, and the Big BangTeachOpen the presentationClassroom sequence for this conceptPractiseOpen problem applicationsEasy through expert problem pathwaysPlanOpen the full curriculum mapCambridge Physics 9702