The Perpetual Motion Quiz
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Questions and Answers

Which of the following best describes perpetual motion?

  • The motion of bodies that continues forever in an unperturbed system (correct)
  • The motion of bodies that continues temporarily in a perturbed system
  • The motion of bodies that continues forever in a perturbed system
  • The motion of bodies that continues temporarily in an unperturbed system

    • What is a perpetual motion machine?

  • A machine that can do work temporarily with an external energy source
  • A machine that can do work infinitely without an external energy source (correct)
  • A machine that can do work temporarily without an external energy source
  • A machine that can do work infinitely with an external energy source

    • Why is a perpetual motion machine impossible?

  • It would violate the first or second law of thermodynamics, or both (correct)
  • It would violate the laws of motion
  • It would violate the first law of thermodynamics
  • It would violate the second law of thermodynamics

    • Do the laws of thermodynamics apply only to small systems?

    <p>No, they apply regardless of the size of the system</p> Signup and view all the answers

    Why will machines that extract energy from finite sources not operate indefinitely?

    <p>They are driven by the energy stored in the source, which will eventually be exhausted</p> Signup and view all the answers

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