Physics topic
Atomic & nuclear physics simulations
Explore electron beams, the photoelectric effect, nuclear scattering, X-rays and radioactive counting through idealised models.
What can observations tell us about matter we cannot see?
Select a model and change one experimental setting. Use the pattern of results to test a prediction, then read the assumptions to distinguish a simulation from a real radiation experiment.
- Photons and the photoelectric effect
- Electron motion and diffraction
- Scattering and radioactive decay

Start here
These labs provide a route into the topic. Make a prediction first, then use the controls to test it.
All atomic & nuclear physics experiments
Photoelectric effect2D →Photoelectric effect · 3D3D →X-ray tube · 3D3D →Electron beam & specific charge · 3D3D →Electron diffraction · 3D3D →Radioactivity counting bench · 3D3D →Rutherford scattering · 3D3D →
Need a different starting point? Explore the other physics topics.


