This simulation allows students to use an air hockey table to investigate simple collisions in 1D and more complex collisions in 2D. Students can experiment with the number of discs, masses, initial conditions, and can vary the elasticity and see how the total momentum and kinetic energy changes during collisions...

Collisions: inelastic collision top view

Inelastic large spin

Collisions: inelastic little spin

Collisions: large mass into small mass

Collisions: oblique collision

Collisions: rebound (v-t)

Collision: small mass into large mass

Collisions: equal mass straight (x-t)

From Solar Spark, this simple demonstration shows the effect of adding colours. Photos and pictures are often made up from just four colours black, cyan, magenta and yellow. Different amounts of each colour combine to get all the colours of the rainbow and make the complete picture.

Solar cells are...

In this activity, from the Royal Observatory Greenwich, students look at the Sun and the Milky Way in different wavelengths. They apply their understanding of the electromagnetic spectrum to astrophysical objects and look at why it is important to use the whole spectrum in astronomy. The images of the Sun are...

A Year Ten module from the Salters’ double award science course. Exercises on codes and signalling methods introduce ideas about communication. A study of the ear leads to sound communication systems such as radio and telephones. Lenses are studied and the formation of...

To understand how everyday devices like mobile phones, routers and satellites work, we need to understand what radio waves are and how we can transmit information with them. Radio communication is one of the key elements in our CanSat. All the data needed for our scientific experiment will be sent from the CanSat...