288 published interactive labs
Simulation Hub — Interactive Simulations
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288 simulations found
Simple Harmonic Motion Lab — Mass-Spring Simulator
Simulate simple harmonic motion online: underdamped, critically damped, overdamped, and resonance. Adjust mass, spring constant, damping, and driving force. Export CSV data.
Foundation · Under 10 minutesOpen simulation →physicsSolar System Simulator — Orbital Mechanics & Kepler's Laws
Explore the solar system online with accurate Keplerian orbits for all 8 planets and Pluto. Adjust simulation speed and zoom, click planets for orbital data, and verify Kepler's Third Law.
Intermediate · 10–20 minutesOpen simulation →physicsSpecial Relativity Simulator — Spacetime & Doppler
Explore special relativity online: time dilation, length contraction, Minkowski spacetime diagrams, and relativistic Doppler. Adjust velocity from 0 to 0.9999c with quick-set buttons.
Advanced · 20+ minutesOpen simulation →physicsStatistical Mechanics Simulator — Maxwell-Boltzmann Distribution
Explore statistical mechanics online: Maxwell-Boltzmann speed distribution, Boltzmann factors, and quantum oscillator microstates. Adjust temperature, degrees of freedom, and mass interactively.
Advanced · 20+ minutesOpen simulation →physicsStellar Lifecycle Simulator — Star Evolution & HR Diagram
Simulate stellar evolution online for stars from 0.1 to 100 solar masses. Watch phases from main sequence to red giant, supernova, neutron star, or black hole with a live HR diagram.
Intermediate · 10–20 minutesOpen simulation →physicsSuperconductivity Simulator — Meissner Effect & Cooper Pairs
Explore superconductivity online: Meissner effect, Cooper pairs, Abrikosov vortex lattice, and resistance transition. Adjust temperature, B field, and critical temperature for Pb, YBCO, NbTi, and MgB₂.
Intermediate · 10–20 minutesOpen simulation →physicsWave Superposition Simulator — Standing Waves & Fourier
Explore wave superposition online: standing waves with boundary conditions, 2D interference patterns, beat frequency, and Fourier synthesis. Free interactive wave physics simulator.
Advanced · 20+ minutesOpen simulation →physicsThermal Physics Simulator — Carnot Engine & Entropy
Explore thermal physics online: Carnot cycle on a PV diagram, heat conduction, entropy production, and Maxwell's demon. Adjust hot/cold reservoir temperatures and conductivity interactively.
Intermediate · 10–20 minutesOpen simulation →physicsWave Interference Simulator — 2D Interference Patterns
Simulate 2D wave interference online with up to 8 sources. View displacement, intensity, or phase maps in real time. Adjust frequency, wavelength, phase, and amplitude per source.
Foundation · Under 10 minutesOpen simulation →physicsWave Optics Simulator — Diffraction, Thin Film & Polarization
Explore wave optics online: double-slit interference, diffraction grating, thin film iridescence, and Malus's law polarization. Adjust wavelength, slit separation, film thickness, and polarizer angle.
Foundation · Under 10 minutesOpen simulation →physicsMagnus Effect Simulator: Why Spinning Balls Curve
Interactive Magnus effect simulator. Adjust spin, speed and air drag to bend a ball like a curveball or free kick and see the force that curves its path.
Intermediate · 10–20 minutesOpen simulation →physicsBrachistochrone Curve Simulator - Fastest Ramp
Interactive brachistochrone simulator: race a ball down a curved cycloid ramp vs a straight ramp and see why the curve wins. Tune gravity, drop, and distance live.
Intermediate · 10–20 minutesOpen simulation →physicsTerminal Velocity Simulator: Falling Object & Air Drag
Free terminal velocity simulator. Drop a falling object, adjust mass and drag, and watch air resistance cap its speed. Interactive physics you can control.
Intermediate · 10–20 minutesOpen simulation →physicsNewton's Cradle Simulator: Momentum & Energy
Interactive Newton's cradle simulator: lift 1-3 balls, adjust angle and damping, and watch momentum and energy transfer through a chain of swinging balls.
Foundation · Under 10 minutesOpen simulation →physicsElastic Collision Simulator: Momentum & Energy
Interactive elastic collision simulator. Set the mass and velocity of two balls, watch them collide, and see momentum and kinetic energy stay conserved in real time.
Intermediate · 10–20 minutesOpen simulation →physicsDamped Oscillation Simulator: Spring-Mass Decay
Interactive damped oscillation simulator. Adjust spring stiffness, damping, and mass to see underdamped, critical, and overdamped decay live with the e^(-γt) envelope.
Intermediate · 10–20 minutesOpen simulation →physicsStanding Waves Simulator: String Harmonics, Nodes
Interactive standing waves simulator for string harmonics. Adjust the harmonic, amplitude and speed to see nodes, antinodes and wavelength update live.
Foundation · Under 10 minutesOpen simulation →physicsGyroscope Precession Simulator: Why Spinning Tops Don't Fall
Interactive gyroscope precession simulator. Spin a tilted flywheel, adjust spin rate and gravity, and watch angular momentum make it circle instead of topple.
Intermediate · 10–20 minutesOpen simulation →physicsCenter of Mass Simulator: Balance Point Explained
Interactive center of mass simulator: drag weighted blocks on a bar, watch the balance point shift, and see the seesaw tilt or level in real time.
Intermediate · 10–20 minutesOpen simulation →physicsEscape Velocity Simulator: Orbit or Escape Explained
Interactive escape velocity simulator: adjust launch speed and angle to watch a projectile fall back, orbit, or escape Earth, the Moon, or Jupiter.
Intermediate · 10–20 minutesOpen simulation →physicsPendulum Wave Simulator - Traveling Waves Explained
Interactive pendulum wave simulator: watch 15 pendulums of different lengths drift into snaking traveling waves and snap back in sync. Tune amplitude, speed & cycle.
Foundation · Under 10 minutesOpen simulation →biologyInteractive Human Anatomy Simulation
Explore the human body systems interactively — organs, bones, and tissues in a free online anatomy simulation for students and teachers.
Intermediate · 10–20 minutesOpen simulation →biologyAstrobiology Simulation: Life Beyond Earth
Investigate the conditions needed for life in this free online astrobiology simulation — explore extremophiles, habitable zones, and biosignatures.
Intermediate · 10–20 minutesOpen simulation →biologyCell Builder: Assemble Animal & Plant Cells
Build animal and plant cells from scratch in this free interactive cell builder — place organelles, learn their functions, and see how cells are structured.
Foundation · Under 10 minutesOpen simulation →Learn science by changing the variables
SciFunLab turns equations into experiments. Compare a projectile motion simulation with the forces behind the Magnus effect, then investigate viscosity inside the fluid dynamics lab. Each page opens the working model directly, with no synthetic worksheet or course page between you and the experiment.
Advanced learners can trace light in the ray tracing lab, inspect atomic signals with NMR spectroscopy, model populations in the ecology simulation, or practise network design with the subnetting simulator.
Browse the engineering simulation collection, play browser physics games, or see how this catalogue compares as a PhET alternative for free interactive STEM exploration.