Force
Forces and Motion

## Finding forces - Physics narrative

Physics Narrative for 5-11

A Physics Narrative presents a storyline, showing a coherent path through a topic. The storyline developed here provides a series of coherent and rigorous explanations, while also providing insights into the teaching and learning challenges. It is aimed at teachers but at a level that could be used with students.

It is constructed from various kinds of nuggets: an introduction to the topic; sequenced expositions (comprehensive descriptions and explanations of an idea within this topic); and, sometimes optional extensions (those providing more information, and those taking you more deeply into the subject).

### Different types of forces

Force
Forces and Motion | Electricity and Magnetism

## Different groups of forces

Physics Narrative for 5-11 11-14

## Contact and non-contact forces

The main types of forces that you will meet can be divided into contact and non-contact forces.

Contact forces – the environment can provide support:

• Compression force (a warp force).
• Tension force (a warp force).
• Buoyancy.

Contact forces – reduce, or prevent motion through an environment:

• Grip.
• Slip.
• Drag.

Non-contact forces – allow remote parts of the environment to affect an object:

• Gravity force.
• Magnetic force.
• Electric force.

The space throughout which non-contact forces act is referred to as a field. The field specifies the strength and direction of the non-contact force acting.