2DAge 8+10 min
Leaning stack: where is the center of mass
Two stacks of books: one with a careful overhang and one with too much. One stands, the other falls — the center of mass decides.
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 8+10 min
A ladder against a wall: which angle is safe
Two ladders lean on a wall: the steep one stands, the shallow one slides. Find out why ladders are set at about 15°.
2DAge 8+10 min
A tower crane and its counterweight
Two cranes hold the same load. One has a counterweight and its jib stays level; the other’s jib tips over.
3DAge 9+10 min
Why a bus leans in a turn
A platform tilts slowly. The tall narrow bus tips first, the low one second, the wide one last. A bus in a turn behaves the same way.
3DAge 8+10 min
Why a pyramid is stable and a tower is not
The platform sways from side to side. A tower of ten cubes falls almost at once while a pyramid of ten cubes stands.