Potential to kinetic: the trebuchet
Engineers (Advanced), mission M2 Energy Transfer, lesson 1 of 6.
Hook
Medieval engineers threw stones over castle walls with just a falling weight. How?
Fair test
Measure counterweight drop height and projectile range. Sketch the energy chain.
Bonus challenge
Hit a target (a cup) at 1.5 m. Adjust only one thing.
The build
- 🏹 Counterweight Trebuchet: The heavy battery box drops, the long arm whips up — and your bush flies across the room! (level 3 of 5, about 40 minutes, 17 steps)