AP Physics 2 · 15 Modern Physics
Radioactive decay for AP Physics 2
Radioactive decay is mapped to 15 Modern Physics in the AP Physics 2 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
15 Modern Physics
- Curriculum
- AP Physics 2
- Theme or group
- AP Physics 2: Algebra-Based
- Current framework
- 2026–27 course year · May 2027 exam format
Photons, matter waves, and energy levels are Chapter 47; radioactivity and nuclear reactions are Chapter 46.
Mastery checklist
Know what success looks like.
- 01
State the physical model and the evidence or observation it explains.
- 02
Track energy, momentum, charge, and nucleon number through the process where applicable.
- 03
Interpret the relevant spectrum, decay, probability, or binding-energy representation.
Exam lens
Build, apply, check.
15 Modern Physics is identified as 12–15% in this curriculum map. Build the concept first, then practise selecting a model, showing working, and checking the final result.
Teaching sequence
15 Modern Physics
This syllabus point maps to 7 ordered concept guides.
- 01The photoelectric effect
- 02Matter waves
- 03The Bohr model and energy quantisation
- 04Discrete energy levels and spectra
- 05Radioactive decayCurrent guide
- 06Half-life and activity
- 07Nuclear reactions and binding energy