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Physics Work Quiz
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Physics Work Quiz

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Questions and Answers

When does a force do negative work?

  • When it has a component in the same direction as the displacement at the point of application
  • When it has no component in the direction of the displacement at the point of application
  • When it has a variable component with respect to the displacement at the point of application
  • When it has a component opposite to the direction of the displacement at the point of application (correct)
  • What is the work done by the gravitational force when a ball is thrown upwards?

  • $0$
  • $Wd$
  • $-Wd$ (correct)
  • $Wd^2$
  • What is the work done by the gravitational force when a ball is held above the ground and then dropped?

  • $-Wd$
  • $Wd^2$
  • $0$
  • $Wd$ (correct)
  • What does work equal in its simplest form for a constant force aligned with the direction of motion?

    <p>The product of the force strength and the distance traveled</p> Signup and view all the answers

    When is a force said to do positive work?

    <p>When it has a component in the direction of the displacement of the point of application</p> Signup and view all the answers

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