Interactively balance forces on a rigid lever by placing masses at different distances from the pivot. Observe torque magnitudes and directions, and understand the condition for rotational equilibrium.
Interactive 3D space simulator for Newton's Law of Universal Gravitation. Launch satellites, observe elliptical orbits, and track kinetic and potential energy live.
Drop objects of different densities into fluid of adjustable density. Observe buoyant force, weight, and net force to predict whether objects sink, float, or remain neutrally buoyant — all in 3D.
Visualize harmonic resonance standing waves in strings and air columns (open and closed pipes). Calculate wavelength, frequency, and locate nodes and antinodes.
Simulate sound wave propagation from a moving source. Calculate perceived frequencies for front and rear observers, and explore the Mach Cone (sonic boom) during supersonic flight.