Do physics, don't just read it
Launch a projectile and watch the parabola form, or set a pendulum swinging and discover why mass doesn't matter. Every value is computed from the real equations of motion — change a parameter and the physics responds instantly.
← All Virtual LabsProjectile Motion
Set the launch speed, angle and gravity, then hit Launch. The orange curve is the trajectory; range, maximum height and time of flight come straight from the equations of motion.
Simple Pendulum
Drag the sliders and watch the swing. The period is computed from T = 2π√(L⁄g), and the motion uses the real pendulum equation — change the length or gravity to feel the difference, and try changing the mass to see what doesn't happen.
Force & Motion
Push a block across a surface. The net force is the applied force minus friction, and Newton's second law gives the acceleration. Watch velocity and momentum build up as it slides — raise the friction and it slows or won't budge.
Optics — Lenses & Mirrors
Pick a lens or mirror, then move the object and change the focal length. The ray diagram and the image are computed from 1∕do + 1∕di = 1∕f; the panel tells you whether the image is real or virtual, upright or inverted, magnified or diminished.
Wave Lab
Add two waves and watch what happens. In Superposition, line them up for a bigger wave, flip the phase to cancel them out, or detune the frequencies to hear beats. Switch to Standing wave to send identical waves the opposite way and freeze the nodes in place.
Circuit Sandbox
Build a circuit with a battery and resistors, then flip between series and parallel to see how the total resistance, current and power change. Everything follows Ohm's law (V = IR); the bulb glows brighter as more power flows.