Forces & friction
Ramp
Static vs. kinetic friction, air resistance, and block-on-block collisions on an incline.
Learn moreLabs
Mechanics Experiments
Four interactive classical-mechanics experiments, all built on the same physics engine: SUVAT equations, conservation of energy, and conservation of momentum, worked out live with the numbers you choose.
Collisions
Newton's Cradle
Real pendulum physics — pull back one or two balls and watch momentum and energy transfer through the row.
Learn moreKinematics
Projectile Motion
Launch speed, angle, and height, with independent horizontal and vertical SUVAT equations.
Learn moreReal-world physics
Stopping Distances
Reaction distance plus SUVAT-derived braking distance, across speeds and road conditions.
Learn more