Quick preview Adjust the pistons and input force to lift a tiny excavator arm.
By The Bugged Dev
Experiments · Creative references
Change a pendulum’s parameters and watch its motion and energy.
By PhET · University of Colorado Boulder ↗
Open experience ↗Opens on the creator’s website01 / GET STARTED
Pull the bob aside, release it and compare different lengths.
02 / ABOUT THE CREATION
A familiar swinging object raises interesting questions about motion.
03 / MORE TO KNOW
Real experiments may involve additional effects.