Demonstration: Roll a ball on a curved track to explain Galileo's idea, which in turn led to Newton's First Law of Motion.

Practical Activity 14-16

Demonstration: The tendency of a body to resist acceleration is called its inertia. This experiment provides direct experience...

Practical Activity 14-16

Demonstration: The effect of friction is reduced so that you can see that a pair of balanced forces produce zero acceleration...

Practical Activity 14-16

Class practical: This seemingly simple activity makes fundamental points about force and related quantities.

Practical Activity 14-16

Demonstration: These are short activities, suitable for demonstration as a conjuring act.

Practical Activity 14-16

Demonstration: This shows that a body moves with constant velocity unless an unbalanced force acts on it. The constant...

Practical Activity 14-16

Class practical: This activity shows that resistance to motion depends on the mass of the body being accelerated, rather than...

Practical Activity 14-16

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