Physics of Friction Quiz
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Questions and Answers

What is the primary effect of sliding friction between a body and the surface?

  • It prevents the body from moving.
  • It creates a magnetic force that increases movement.
  • It generates heat and sound. (correct)
  • It enables the body to slide freely without resistance.

    • What is the purpose of threading on tyres?

  • To allow for better fuel efficiency.
  • To enhance aesthetics and design.
  • To reduce the weight of the tyre.
  • To increase friction and improve road grip. (correct)

    • Which of the following is a disadvantage of friction?

  • It can increase the lifespan of moving parts.
  • It limits the speed of moving objects. (correct)
  • It allows vehicles to stop safely.
  • It enables writing and drawing on paper.

    • How does friction facilitate writing with a pencil?

    <p>By providing traction that allows the pencil to mark the paper.</p> Signup and view all the answers

    Why is friction important for the flight of birds?

    <p>It prevents their wings from slipping against the air.</p> Signup and view all the answers

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