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Physics Quest

A free physics school · ages 7 to university

The universe runs on rules.
Come test them.

Drop a hammer on the Moon, bend light through glass, fire electrons at two slits. Every lesson asks you to predict what happens first, then hands you the experiment.

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Free, no account needed. Sign in only to save your progress.

Fig. 015 pendulums, 15 lengths. Every 30 seconds they line up again. You'll see why in stage 4.

45

lessons

44

simulations

3

languages

Experiment 01

Make a prediction first

A bowling ball and a feather are dropped together in a vacuum chamber. Which one lands first?

How every lesson works

Physics education research is clear: people learn far more from an experiment when they predict the result first. So every lesson follows the same four beats.

  1. 01

    Predict

    Commit to a guess before you see anything. A wrong guess is where real learning starts.

  2. 02

    Experiment

    Run the simulation. Change one thing at a time and watch the numbers and arrows respond.

  3. 03

    Explain

    See the law behind it, with every symbol of the formula decoded in plain words.

  4. 04

    Remember

    Key ideas become flashcards that come back right before you would forget them.

Climb the spectrum

Five stages, five colours of light. Start at red with pushes, shadows and magnets. Finish at violet with relativity, quantum physics and the birth of the universe.

01650 nmExplorersAges 7–10 · first stepsPushes and pulls, falling, floating, light and shadows, sound and magnets.Forces All AroundLight, Sound and Magnets02590 nmInvestigatorsAges 10–13Measure the world: scale and units, speed, matter and heat, energy, levers and circuits.Measuring the WorldEnergy, Machines and Circuits03530 nmExperimentersAges 13–16Newton's laws, momentum, projectiles, work and energy, gravity and orbits.Motion and Newton's LawsProjectiles and EnergyGravity and Orbits04470 nmTheoristsAges 16–18Oscillations and waves, light and optics, electric fields, induction, heat and entropy.Oscillations and WavesLight and OpticsElectricity and MagnetismHeat and Entropy05410 nmScholarsAges 18+ · universityRelativity, quantum physics, least action, chaos, nuclei, particles and the expanding universe.RelativityThe Quantum WorldMechanics ReimaginedNuclei, Particles and the Cosmos
Open the full map

A lab where nothing breaks

Launch satellites, wire circuits, split white light, fire electrons through slits and watch entropy win. Every simulation is one click away.

🌍Newton's cannonGravity and orbits⚛️Double slitRelativity and quantum🕳️Curved spacetimeRelativity and quantum💡Circuit builderElectricity and magnetism💧Ripple tankOscillations, waves and sound🔆Laser and glassLight and optics🎈Gas in a boxMatter and heat🎯Projectile cannonForces and motion
Enter the Lab

Physics has a story

From Archimedes in his bath and Ibn al-Haytham in a dark room to Noether's symmetries and the first photo of a black hole: meet the people who worked it out.

🛁Archimedesc. 287–212 BCE👁️Ibn al-Haytham (Alhazen)c. 965–1040⛰️Al-Biruni973–c. 1050🔭Galileo Galilei1564–1642🍎Isaac Newton1643–1727✒️Émilie du Châtelet1706–1749⚙️Michael Faraday1791–1867☢️Marie Curie1867–1934💡Albert Einstein1879–1955🔄Emmy Noether1882–1935🌊C. V. Raman1888–1970🪞Chien-Shiung Wu1912–1997🤝Abdus Salam1926–1996💫Vera Rubin1928–2016
Read the history

The first experiment takes two minutes

Pick your stage and run your first experiment now. Create a free account whenever you want your progress saved.

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