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🎢 Roller Coaster

Draw a track and launch the cart. The law of conservation of energy. Age: 10+

Build & Play3DEasy60 FPS

🎢 Roller Coaster — Physics Simulation

Design and ride your own roller coaster! Balance gravity, centripetal force, and kinetic energy as your cart navigates loops, hills, and drops — and see if your design passes the physics test.

🔬 What It Demonstrates

Energy conservation: potential energy at the top of a hill converts to kinetic energy at the bottom. A loop requires enough speed at the top so centripetal force ≥ gravity. Too slow = the cart falls. Too fast = dangerous g-forces.

🎮 How to Use

Drag track segments to build your layout. Press launch to ride. The energy meter shows where speed is gained and lost. Try to complete the loop without stopping or exceeding safe g-forces.

💡 Did You Know?

The first roller coasters were 17th-century Russian ice slides — purely gravity-powered. Modern coasters are engineered to within millimetres; the world's fastest reaches 240 km/h using electromagnetic launch rails.

⚙ Under the hood

Draw your own track, then launch a cart and watch energy conservation set its speed through every loop. Ages 10+.

roller coaster simulation kidscentripetal forceg-forceenergy conservation

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install