THEORY / CALCULATION / UNDERSTANDING
Physics calculators and theory
Calculate uniform motion and inclined plane forces with unit conversions, step-by-step formulas and diagrams. Explore the assumptions and theory behind each model, from learning physics to everyday engineering.
Explore physics
07 SUBJECTSSI Units & Physical Constants
Explore the seven SI base units, all 22 derived units with special names, useful unit relationships and key physical constants.
Subtopics01ExploreMechanics
Calculate motion and forces with mechanics models for uniform motion and inclined planes. Explore kinematics and dynamics with unit conversions, formulas and diagrams.
Subtopics02ExploreThermodynamics
Explore heat, temperature and energy, starting with the pressure, volume and temperature of ideal gases.
Subtopics03ExploreElectricity & Magnetism
Explore DC and AC circuits, transformers, magnetic fields, capacitors, inductors, resonance, filters and three-phase systems. Calculate with SI units, formulas and circuit diagrams.
Subtopics04ExploreOscillations & Waves
Explore wave propagation and frequency shifts, starting with the acoustic Doppler effect for moving sources and observers.
Subtopics05ExploreOptics
Explore light at optical interfaces, starting with refraction, the critical angle and total internal reflection.
Subtopics06ExploreModern Physics
Explore quantum phenomena, starting with single-qubit states, quantum gates and the Bloch sphere.
Subtopics