Newton's Second Law
Forces and Motion

Different kinds of driving forces

Physics Narrative for 11-14 Supporting Physics Teaching

Driving forces

Driving forces can be exerted by many different parts of the object's environment.

  • Gravity is the driving force for an object falling towards the ground.
  • A skate-boarder relies on the ground pushing on the sole of her shoe to drive her skateboard along.
  • A shopper in the supermarket pushes against the ground as they walk and their hands provide the force which drives their trolley forward.
  • A car, scooter or motorbike get going from a driving force through gripping the road surface.
Newton's Second Law
is expressed by the relation F=ma
can be used to derive Kepler's First Law

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