Dynamics Unit 3 Quiz
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Questions and Answers

Which equation is used to calculate force?

  • Force = weight × acceleration due to gravity
  • Force = mass × velocity
  • Force = change in momentum / change in time (correct)
  • Force = mass × acceleration

    • What changes the direction of motion but not the speed in a curved path?

  • Tension force
  • Gravitational force
  • Frictional force
  • Centripetal force (correct)

    • Which law states that the total momentum of an isolated system remains constant over time?

  • Newton's first law of motion
  • Newton's second law of motion
  • Law of conservation of energy
  • Law of conservation of momentum (correct)

    • What is the relationship between mass and weight?

    <p>Weight is directly proportional to mass</p> Signup and view all the answers

    Which type of friction is much lesser than sliding friction?

    <p>Rolling friction</p> Signup and view all the answers

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