Forces and Motion | Electricity and Magnetism

Two groups of forces

Physics Narrative for 11-14 Supporting Physics Teaching

Contact and non-contact forces

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

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.

Reminder about 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
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