BBC Learning Zone Clips

CLIP 778

Frictional forces - why trainers grip well

Frictional forces - why trainers grip well
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Key Info
  • Frictional forces - why trainers grip well
  • Duration: 01:32
  • The frictional force of different shoes depends on the type of material the sole is made from. Why do some shoes or socks slide more easily on the floor? If a shoe won't slide on the floor when you exert a force on it there must be an equal force opposing the motion. This force is friction and varies depending on the materials involved.
  • Subject:

    Science

       Topic:

    Phys: Forces - Motion

  • Keywords: friction, forces, movement
Ideas for use in class
  • Use this clip to show that frictional force is a contact force which depends on the type of surfaces in contact, and friction opposes motion.
Background details
  • Clip language : English
  • Aspect ratio : 4x3

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