Ramp and friction: ice, wood, rubber
Three blocks on an inclined plane: one slides like on ice, one slowly, one stays put. A friction experiment for kids 7+.
Interactive experiments for kids, students and teachers. Run each one right on the page, then open a copy in the Tymora editor and change mass, friction, elasticity or gravity. Every experiment comes with discussion questions and a version to try at home.
Three blocks on an inclined plane: one slides like on ice, one slowly, one stays put. A friction experiment for kids 7+.
A cue ball breaks a rack on a top-down table. Momentum passes from ball to ball — a collision experiment for kids 8+.
A tablecloth is pulled fast and slowly. The first time the cups stay on the table, the second time they ride off and fall.
Two ladders lean on a wall: the steep one stands, the shallow one slides. Find out why ladders are set at about 15°.
Identical salt shakers stand on trays tilted 10°, 20° and 35°. Find the angle where static friction no longer holds.
Three skiers ride down the same hill: with good wax, poor wax and none. Compare who glides farthest on the flat.
Two carts with dummies hit a barrier. The belted one stays put, the unbelted one flies forward.
Snowballs roll down a mountain. Rows of trees on the slope slow the avalanche so less snow reaches the house.
A sled and a cart get the same push. The sled quickly stops while the wheeled cart rolls much farther.