Newton's First Law
Forces and Motion

Thinking about actions to take: Predicting Constant Speed

Teaching Guidance for 11-14 Supporting Physics Teaching

There's a good chance you could improve your teaching if you were to:

Try these

  • making stronger and continuous links to work on forces
  • emphasising the counter-intuitive nature of Newtonian natural motion

Teacher Tip: Work through the Physics Narrative to find these lines of thinking worked out and then look in the Teaching Approaches for some examples of activities.

Avoid these

  • drawing similar arrows for those representing forces and those representing movement
  • speaking of balanced forces—prefer the resultant force is equal to 0

Teacher Tip: These difficulties are distilled from: the research findings; the practice of well-connected teachers with expertise; issues intrinsic to representing the physics well.

Newton's First Law
formalises Inertia
includes the quantity Force
IOP AWARDS 2025

Teachers of Physics Awards

The Teachers of Physics Award celebrates the success of secondary school physics teachers who have raised the profile of physics and science in schools. Nominations for 2025 are now open.

Start your nomination now