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Friction

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  • Force cannot be measured.
    False
    True
  • a tool to measure force
    thermometer
    forcemeter
  • Which activity has little friction?
    skating
    climbing rocks
  • Friction ______ car tyres from skidding.
    stop
    start
  • Friction acts in the same direction that the object is moving in.
    True
    False
  • Friction is ________ when it helps us grip the floor with our shoes
    useful
    not useful
  • Smooth surfaces have no friction at all.
    False
    True
  • The ________ the surface, the stronger the friction.
    rougher
    smoother
  • Friction produces ______, like when you rub your hands together.
    heat
    light
  • Friction is the force that acts against you when you try to move something heavy.
    False
    True
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