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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

25.1.1—The term luminosity as the total power of radiation emitted by a star

25.1.2—The inverse square law for radiant flux intensity F

25.1.3—An object of known luminosity is called a standard candle

25.1.4—The use of standard candles to determine distances to galaxies

25.2 Stellar radii

25.3 Hubble’s law and the Big Bang theory

Practical assessment skills

Mathematical, data, formula and circuit-symbol skills

A-Level/CAIE/Physics//A2/Concept/25. Astronomy and cosmology/25.1 Standard candles/25.1.3—An object of known luminosity is called a standard candle

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