Live
Atom Lab
Build atoms by adding protons, neutrons and electrons, and see how the element, charge and isotope change.
Class 9–10 · Class 11–12Class 9 Science: Structure of the Atom; Class 11 Chemistry: Structure of Atom
Launch simulator: Atom LabPhysics
Change the parameters of the physical world and watch what happens: launch projectiles, bend light, collide carts and build fields from charges.
25 live simulators
LiveBeginner
Projectile Motion
Launch a projectile, change angle, speed, gravity, height and air drag, and compare trajectories, range and flight time.
Class 11–12Class 11 Physics: Motion in a Plane
Launch simulator: Projectile Motion
LiveBeginner
Pendulum
Swing a simple pendulum, change length, gravity, amplitude and damping, and compare the measured period with the small-angle formula.
Class 6–8 · Class 11–12Class 7 Science: measurement of time and motion; Class 11 Physics: Oscillations
Launch simulator: Pendulum
LiveIntermediate
Spring and Mass
Oscillate a mass on a spring, change mass, stiffness and damping, and watch kinetic, elastic and lost energy trade places.
Class 11–12Class 11 Physics: Oscillations
Launch simulator: Spring and Mass
LiveBeginner
Collisions
Collide two carts on a track, change their masses, velocities and restitution, and check momentum and kinetic energy before and after.
Class 9–10 · Class 11–12Class 9 Science: Force and Laws of Motion (momentum); Class 11 Physics: Work, Energy and Power
Launch simulator: Collisions
LiveBeginner
Inclined Plane
Put a block on a ramp, change slope, mass and friction, resolve the forces and predict whether it slides.
Class 11–12Class 11 Physics: Laws of Motion (friction, resolving forces)
Launch simulator: Inclined Plane
LiveBeginner
Circular Motion
Spin an object around a circle, change radius, speed and mass, and inspect centripetal acceleration, force and what happens when the string is cut.
Class 11–12Class 11 Physics: Motion in a Plane; Laws of Motion
Launch simulator: Circular Motion
LiveIntermediate
Orbital Motion
Launch a satellite around a planet, change its starting speed and direction, and compare circular, elliptical and escape trajectories.
Class 9–10 · Class 11–12Class 9 Science: Gravitation; Class 11 Physics: Gravitation
Launch simulator: Orbital Motion
LiveIntermediate
Wave Interference
Add two travelling waves, change their amplitude, frequency and phase, and watch superposition create constructive, destructive interference and beats.
Class 11–12Class 12 Physics: Wave Optics
Launch simulator: Wave Interference
LiveIntermediate
Standing Waves
Drive a string fixed at both ends, change length, tension, density and frequency, and find the resonant harmonics.
Class 11–12Class 11 Physics: Waves
Launch simulator: Standing Waves
LiveBeginner
Doppler Effect
Move a sound source and a listener, watch wavefronts bunch up and spread out, and compare emitted and received frequency.
Class 11–12 · College & beyondClass 11 Physics: Waves
Launch simulator: Doppler Effect
LiveIntermediate
Geometric Optics
Drag an object in front of a thin lens, change the focal length, and trace the principal rays to find the image position, size and type.
Class 9–10 · Class 11–12Class 10 Science: Light – Reflection and Refraction; Class 12 Physics: Ray Optics
Launch simulator: Geometric Optics
LiveBeginner
Refraction
Shine a ray between two media, change refractive indices and incidence angle, and find the critical angle and total internal reflection.
Class 9–10 · Class 11–12Class 10 Science: Light – Reflection and Refraction; Class 12 Physics: Ray Optics
Launch simulator: Refraction
LiveIntermediate
Heat Diffusion
Heat a metal rod, choose the material and end temperatures, and watch the temperature profile relax towards a straight-line steady state.
Class 6–8 · Class 11–12Class 7 Science: heat and conduction; Class 11 Physics: Thermal Properties of Matter
Launch simulator: Heat Diffusion
LiveIntermediate
Gas Laws
Squeeze, heat and fill a gas-filled piston, hold one quantity constant, and see Boyle's, Charles's and Gay-Lussac's laws emerge from bouncing particles.
Class 11–12Class 11 Physics: Kinetic Theory (gas laws)
Launch simulator: Gas Laws
LiveIntermediate
Electric Fields
Place and drag positive and negative charges, and visualise the electric field vectors, field lines and equipotential contours they create.
Class 11–12Class 12 Physics: Electric Charges and Fields
Launch simulator: Electric Fields
LiveIntermediate
Electromagnetic Induction
Push a bar magnet through a coil, change speed, turns and magnet strength, and connect the changing magnetic flux to the induced voltage.
Class 11–12Class 12 Physics: Electromagnetic Induction
Launch simulator: Electromagnetic Induction
LiveIntermediate
Fluid Continuity
Push water through a pipe that narrows and widens, change areas and flow rate, and compare speed and idealised pressure along the pipe.
Class 11–12Class 11 Physics: Mechanical Properties of Fluids
Launch simulator: Fluid Continuity
LiveBeginner
Buoyancy
Drop blocks of different densities into different liquids, predict whether they float and how deep, and see Archimedes' principle balance the forces.
Class 9–10 · Class 11–12Class 9 Science: Gravitation (thrust, buoyancy, Archimedes' principle); Class 11 Physics: Fluids
Launch simulator: Buoyancy
LiveBeginner
Radioactive Decay
Watch a sample of unstable nuclei decay at random, change half-life and starting count, and compare the stochastic count with the exponential expectation.
Class 11–12 · College & beyondClass 12 Physics: Nuclei
Launch simulator: Radioactive Decay
LiveIntermediate
Phase Diagram
Move a sample of water or carbon dioxide around its pressure–temperature phase diagram and see where it is solid, liquid, gas or supercritical.
Class 11–12 · College & beyondExtends Class 9 states of matter; phase diagrams are college level
Launch simulator: Phase Diagram
LiveIntermediate
Magnetic Fields
Place current-carrying wires going into and out of the page, and visualise the magnetic field lines, strength and direction they create, including coils and parallel-wire forces.
Class 9–10 · Class 11–12Class 10 Science: Magnetic Effects of Electric Current; Class 12 Physics: Moving Charges and Magnetism
Launch simulator: Magnetic Fields
LiveIntermediate
Urban Heat
Change a city surface's colour, shade, vegetation and heat storage, and compare an illustrative surface energy balance and day–night temperatures with a grass park.
Class 11–12 · College & beyondClass 11 Geography: Solar Radiation, Heat Balance and Temperature
Launch simulator: Urban Heat
LiveAdvanced
Beam Deflection
Load a simply supported or cantilever beam with point and distributed loads, change span, material and cross-section, and inspect deflection, bending moment, shear and stress in the small-deflection Euler–Bernoulli model.
College & beyondCollege structural engineering
Launch simulator: Beam Deflection
LiveAdvanced
Vibration Isolation
Mount a machine on springs and dampers over a shaking floor, change mass, stiffness, damping and excitation frequency, and compare transmissibility and resonance.
Class 11–12 · College & beyondClass 11 Physics: Oscillations (forced oscillations, resonance)
Launch simulator: Vibration IsolationNo live labs for this topic yet
See the planned labs below, or pick another topic.
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Queues, inventory, supply chains, scheduling and markets.
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