Generate electricity with a bar magnet! Discover the physics behind the phenomena by exploring magnets and how you can use them to make a bulb light.

Experiment with conductivity in metals, plastics and photoconductors. See why metals conduct and plastics don't, and why some materials conduct only when you shine a flashlight on them.

Play ball! Add charges to the Field of Dreams and see how they react to the electric field. Turn on a background electric field and adjust the direction and magnitude. (Kevin Costner not included).

Create a laser by pumping the chamber with a photon beam. Manage the energy states of the laser's atoms to control its output.

This simulation lets you see sound waves. Adjust the frequency or volume and you can see and hear how the wave changes. Move the listener around and hear what she hears.

Mescola due gas per esplorare la diffusione! Sperimenta concentrazione, temperatura, massa e raggio e determina in che modo questi fattori influenzano la velocità di diffusione.

Why do some materials like wood float in water, and others don’t? Interact with blocks of different materials, including a custom option by modifying their mass and volume, to explore the effect on the density and discover the conditions for sinking or floating in water. Play detective to determine the material of each block by comparing its density with the values in the table.

When will objects float and when will they sink? Learn how buoyancy works with blocks. Arrows show the applied forces, and you can modify the properties of the blocks and the fluid.

Perché alcuni materiali come il legno galleggiano nell'acqua e altri no? Interagisci con blocchi di diversi materiali, inclusa un'opzione personalizzata modificandone massa e volume, per esplorare l'effetto sulla densità e scoprire le condizioni per affondare o galleggiare nell'acqua. Gioca al detective per determinare il materiale di ogni blocco confrontando la sua densità con i valori nella tabella.

A realistic mass and spring laboratory. Hang masses from springs and adjust the spring stiffness and damping. You can even slow time. Transport the lab to different planets. A chart shows the kinetic, potential, and thermal energy for each spring.

Explore forces, energy and work as you push household objects up and down a ramp. Lower and raise the ramp to see how the angle of inclination affects the parallel forces acting on the file cabinet. Graphs show forces, energy and work.