2DAge 7+10 min
A train starts: why the wagons jerk one by one
A locomotive pulls five wagons with slack couplings. They start not together but one after another — a wave of jerks.
Projects gallery
Physics experiments
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.
Filters · 3
Duration
Topic
Motion & forces
Collisions & energy
Balance
Oscillations & waves
Machines
Matter, current & light
Logic & chance
2DAge 6+10 min
Sorting by size: a sieve
Small and large balls pour onto a tilted grate. The small ones drop into the left bin, the big ones roll on to the right.
2DAge 6+10 min
Wheel versus sled: why a cart is easier
A sled and a cart get the same push. The sled quickly stops while the wheeled cart rolls much farther.
2DAge 9+10 min
The shock absorber: keeping the body from bouncing
Two identical cars drive over bumps: the top one has only a spring, the bottom one a spring and a shock absorber. The top body bounces for a long time, the bottom one settles quickly.