Interactive physics

The interactive activities are in English.

Momentum and collisions

Set two carts’ masses, speeds and elasticity, then collide them. Compare total momentum and kinetic energy before and after.

Pull the block with increasing force. The graph shows static friction up to motion, then kinetic friction.

Drop a hammer and feather on different worlds. Toggle air resistance and compare their fall times.

Enter any two of force, mass and acceleration. Follow the calculation of the third and check the units.

Move points on a position or velocity graph and watch the runner. Relate slope and area under the graph to motion.

Explore rest, acceleration and interactions in three modes. Change force and mass to see their effects.

Enter two of voltage, current and resistance. Observe the third value and power in the circuit.

Set launch speed and angle, then fire. Inspect trajectory, range, peak height and flight time.

Choose a lever, ramp, pulley or wheel. Change its dimensions to compare force and distance.

Adjust amplitude, wavelength and frequency. Switch between transverse and longitudinal waves and observe speed.

Move the force arrows acting on an object. See how their sum determines balance or acceleration.

Move from radio waves to gamma rays. Compare wavelength, frequency and photon energy.