Galileo thought that a ball, rolling or sliding down a hill without friction, would run up to the same height on an opposite...

Teaching Guidance 14-16

The tendency of a body to resist any change in its motion (speed or direction) – in other words, to resist any change in its...

Teaching Guidance 14-16

Mass is a difficult, strange and sophisticated concept but it is important to build up an understanding of it. Students may...

Teaching Guidance 14-16

If you are considering the forces acting on just one body, either law I or law II will apply.

Teaching Guidance 14-16

Imagine taking your worst enemy in a space craft to get rid of them in the farthest corner of the universe (way beyond...

Teaching Guidance 14-16