Two groups of forces(Introduction)

Different kinds of forces

Your teaching is likely to concentrate on frictional forces, gravity, and magnetic forces. But you'd not want to confuse these with other forces, so there is a complete list here, to help you keep them separate.

Some forces represent how the environment can support a thing:

Frictional forces represent how motion through an environment can be reduced, or prevented:

Non-contact forces — allow remote parts of the environment to affect a thing: