Friction and Forces
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Questions and Answers

Which of the following best explains why the puck doesn't go very far on carpet when hit with a hockey stick?

  • Carpet is rougher than ice
  • Carpet has more friction than ice (correct)
  • Carpet is smoother than ice
  • Carpet has less friction than ice
  • What force causes objects to slow down when moving across surfaces?

  • Gravity
  • Friction (correct)
  • Inertia
  • Momentum
  • Which of the following surfaces tends to have a lot of friction when an object moves across it?

  • Sticky surfaces
  • Rough and sticky surfaces (correct)
  • Rough surfaces
  • Smooth surfaces
  • Why does the hockey puck move much farther with one push across ice than across a carpeted floor?

    <p>Ice has less friction than carpet</p> Signup and view all the answers

    What happens to the velocity of the puck when it slides across the carpet and slows down?

    <p>The velocity decreases</p> Signup and view all the answers

    Which of the following is a characteristic of friction in space?

    <p>It does not exist</p> Signup and view all the answers

    What happens to an object in space if no force is exerted upon it?

    <p>It will keep moving forever</p> Signup and view all the answers

    What can cause an object in space to stop moving?

    <p>Friction</p> Signup and view all the answers

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