A-Level Physics · 22 Quantum physics
Discrete energy levels and line spectra for A-Level Physics
Discrete energy levels and line spectra 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
Track energy transfers with a clearly stated system boundary.
- 02
Choose the appropriate work, energy, or power relationship and keep its sign convention visible.
- 03
Account for useful output, dissipation, and conservation before judging the final value.
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 effect
- 02Matter waves and electron diffraction
- 03Discrete energy levels and line spectraCurrent guide