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  • Created by: Suruthie
  • Created on: 08-05-11 11:09


Whenever an object moves against another object, it feels frictional forces. These forces act in the opposite direction to the movement. Friction makes it harder for things to move.


Helfpul frictional forces

Friction can be useful:

  • friction between our shoes and the floor stop us from slipping

  • friction between tyres and the road stop cars from skidding

  • friction between the brakes and wheel help bikes and cars slow down

Frictional forces are much smaller on smooth surfaces than on rough surfaces, which is why we slide on ice.




All objects have


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