2DAge 8+15 min
Seesaw lever: the balance rule
A heavy load close to the pivot balances a light one far away. An interactive lever model for kids 8+: torque and balance.
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 · 2
Duration
Topic
Motion & forces
Collisions & energy
Balance
Oscillations & waves
Machines
Matter, current & light
Logic & chance
2DAge 5+10 min
Chain reaction: falling dominoes
A ball pushes the first domino and a wave of falling runs through the whole row. An energy and chain reaction experiment for kids 5+.
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.
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 9+15 min
Ship stability: cargo on deck and in the hold
Two identical boats are heeled over. Cargo high on a mast capsizes one, cargo in the hold rights the other.
2DAge 9+15 min
A stone arch without mortar
Nine wedge stones hold each other and a load on top. Remove the keystone and the arch collapses.
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.
2DAge 7+10 min
A lever: a child lifts a heavy stone
A 20 kg load on the long arm lifts a 50 kg stone when the fulcrum is close to the stone. With the fulcrum in the middle the stone stays put.
2DAge 9+15 min
Earthquake: a tall tower and base isolation
A crank mechanism shakes the platform. A narrow tower falls, a wide house stands, and the same tower on soft springs and dampers survives the shaking.