Quantum & Nuclear Physics

16 interactive Physics simulations on quantum & nuclear physics.

Blackbody radiation – Planck curve, Wien's law and colour Physics · Quantum & Nuclear Physics Drag the temperature slider or pick a preset object (Earth, an oven, an incandescent light bulb, the Sun, Sirius A)... Ages 17–18
Advanced physics – AC circuits, medical imaging, quantum physics Physics · Quantum & Nuclear Physics Three physics topics in one simulation, chosen with the topic parameter. Alternating current: a series R, L, C... Ages 17–18
Geiger counter lab – absorption of α, β and γ radiation and the inverse-square law Physics · Quantum & Nuclear Physics A virtual practical with a Geiger–Müller tube: measure and subtract the background count, then count α, β and γ... Ages 17–18
Particle physics – quarks, hadrons and conservation laws Physics · Quantum & Nuclear Physics Combine quarks and antiquarks into baryons and mesons, read the charge Q, baryon number B and strangeness S, and see... Ages 17–18
Photoelectric effect and light quanta Physics · Quantum & Nuclear Physics Shine light of adjustable wavelength on different metals. Electrons are ejected only when the photon energy hf... Ages 17–18
Lasers – population inversion and stimulated emission Physics · Quantum & Nuclear Physics Model a helium–neon laser (four levels, pumped by an electric discharge) and a ruby laser (three levels, pumped by a... Ages 17–18
Radiation dose and safety – irradiation, contamination, grays and sieverts Physics · Quantum & Nuclear Physics Choose a source (α, β, γ or neutron), its activity, the distance, a shield (paper, aluminium, lead or concrete) and... Ages 17–18
Binding energy per nucleon – the curve, fission and fusion Physics · Quantum & Nuclear Physics A graph of binding energy per nucleon Eb/A against mass number A, built from real masses of about 30 nuclei from ²H... Ages 17–18
Electron diffraction and the de Broglie wavelength – diffraction tube, double slit, electron microscope Physics · Quantum & Nuclear Physics An electron diffraction tube with a graphite target: change the accelerating voltage V and watch the rings on the... Ages 17–18
Fission chain reaction and nuclear reactors Physics · Quantum & Nuclear Physics Slow neutrons split uranium-235 nuclei, and each fission releases 2–3 neutrons. Choose the U-235 enrichment,... Ages 17–18
Radioactive decay – decay law and half-life Physics · Quantum & Nuclear Physics N₀ parent nuclei (red) decay randomly into daughter nuclei (grey), each with the same decay probability per unit... Ages 17–18
Compton scattering – the momentum of a photon Physics · Quantum & Nuclear Physics An X-ray photon hits an electron at rest and leaves at angle θ with a longer wavelength: λ′ − λ = (h/mₑc)(1 − cos... Ages 17–18
Build a nucleus – protons, neutrons, stability and decay Physics · Quantum & Nuclear Physics Add and remove protons and neutrons with buttons to build a nucleus, then read its element symbol, mass number A = Z... Ages 17–18
Franck–Hertz experiment – excitation, emission and ionisation Physics · Quantum & Nuclear Physics Sweep the voltage across a mercury or neon tube and plot collector current: it falls each time electrons have gained... Ages 17–18
X-rays in Medical Diagnosis – Absorption, X-ray Spectrum and CT Physics · Quantum & Nuclear Physics An X-ray beam passes through different tissue layers: soft tissue absorbs little, bone absorbs much more, giving the... Ages 17–18
Community Nuclear Fission Chain Reaction Physics · Quantum & Nuclear Physics Simulate a nuclear chain reaction in a grid of Uranium nuclei. Adjust enrichment, critical mass, control rods, and...