Newton's First Law
Forces and Motion

Starting points: Where have we been?

Teaching Guidance for 11-14 Supporting Physics Teaching

Preliminary ideas

Before looking at the relationship between forces and speed it is important for pupils to understand clearly that:

  • Several forces can act on an object at the same time.
  • Equal forces acting in opposite directions add to zero.
  • Stationary objects (at rest) have a resultant force equal to zero.

These ideas were covered in the SPT: Forces topic.

Newton's First Law
formalises Inertia
includes the quantity Force

Disable node explorer

IOP DOMAINS Physics CPD programme

New videos on forces

Our first collection of videos gives teachers and coaches of physics a preview of the training we offer ahead of this term's live support sessions.

Find out more