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20.2k
Physics4.7241 ratings
Circuit Builder
Brighter, same, dimmer or off? Call it before the current flows.
8k
Physics4.7170 ratings
Bridge Workshop
Build a bridge, drive a car across and see which piece works hardest.
110k
Physics4.82,117 ratings
Rocket Workshop
Build a rocket, launch it and find out what it takes to reach space.
123k
Physics4.81,805 ratings
Solar System
Explore the planets, the Moon's phases, and eclipses in one 3D model.
80.8k
Physics4.61,099 ratings
Logic Gates
Flip the switches so every lamp matches its goal in as few moves as you can.
58.7k
Physics4.6764 ratings
Scribble Launch
Sketch ramps, seesaws and ropes, and roll the pod into its rocket.
45.1k
Physics4.5569 ratings
Optics Puzzle
Drag the mirrors so the laser reflects off them and reaches the glowing target.
26k
Physics4.7240 ratings
Incline Forces
See how gravity, friction, and force interact.
20.5k
Physics4.6122 ratings
Waves
Drive a string and watch waves reflect.
18.6k
Physics4.8108 ratings
Double Pendulum
Watch chaos emerge from two coupled pendulums.
18k
Physics4.666 ratings
Magnetic Field
Drag magnets and wires, switch views, and read the field with a compass.
15.8k
Physics4.886 ratings
Bending Light
Aim a laser and watch refraction bend the beam.
14.7k
Physics4.780 ratings
Color Models
Mix light, ink, and hue — watch RGB, CMYK, and HSV make the very same color.
14.2k
Physics4.8154 ratings
Projectile Motion
Launch a ball and watch gravity shape the arc.
11.8k
Physics4.670 ratings
Optics Bench
Pick a lens or mirror, drag the object, and watch the rays form the image.
11.3k
Physics4.868 ratings
Pendulum Lab
Swing a pendulum and watch energy trade places.
10k
Physics4.740 ratings
Doppler Effect
Move a source past a listener and watch the wavefronts compress and stretch.
9.7k
Physics4.650 ratings
Diffraction & Interference
Set slit count, wavelength and spacing, then read the maxima off the screen.