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Cambridge International AS & A Level Physics (9702)

12. Motion in a circle

13. Gravitational fields

14. Temperature

15. Ideal gases

16. Thermodynamics

17. Oscillations

18. Electric fields

19. Capacitance

20. Magnetic fields

21. Alternating currents

22. Quantum physics

23. Nuclear physics

24. Medical physics

25. Astronomy and cosmology

25.1 Standard candles

25.2 Stellar radii

25.3 Hubble’s law and the Big Bang theory

25.3.1—The lines in the emission and absorption spectra

25.3.2—Redshift of electromagnetic radiation

25.3.3—Why redshift leads to the idea that the universe is expanding

25.3.4—Hubble’s law v ≈ H0d and explain how this leads to the Big Bang theory

Practical assessment skills

Mathematical, data, formula and circuit-symbol skills

A-Level/CAIE/Physics//A2/Concept/25. Astronomy and cosmology/25.3 Hubble’s law and the Big Bang theory/25.3.4—Hubble’s law v ≈ H0d and explain how this leads to the Big Bang theory

25. Astronomy and cosmology

Syllabus: 9702–2028–2029
Section: 25
Level: A2

Exam analysis

Most tested topics

Standard candles
Stellar radii
Hubble’s law and the Big Bang theory