A-Level Physics · 22 Quantum physics
Photon energy, momentum, and the photoelectric effect for A-Level Physics
Photon energy, momentum, and the photoelectric effect is mapped to 22 Quantum physics 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.
Where this fits
22 Quantum physics
- Curriculum
- Cambridge International AS & A Level Physics
- Theme or group
- A Level extension
- Current framework
- Examinations in 2025–2027 · Version 1
Photons, the photoelectric effect, matter waves, and energy levels are Chapter 47.
Mastery checklist
Know what success looks like.
- 01
Define the system, then show every external interaction with a clear direction.
- 02
Apply Newton's laws or a conservation law component by component.
- 03
Test the result against units, limiting cases, and the direction of the predicted change.
Exam lens
Build, apply, check.
22 Quantum physics sits inside A Level extension. Build the concept first, then practise selecting a model, showing working, and checking the final result.
Teaching sequence
22 Quantum physics
This syllabus point maps to 3 ordered concept guides.
- 01Photon energy, momentum, and the photoelectric effectCurrent guide
- 02Matter waves and electron diffraction
- 03Discrete energy levels and line spectra