Work and Force Quiz
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Questions and Answers

Which of the following statements about work in physics is correct?

  • Work is the distance traveled by an object divided by the time taken.
  • Work is the force applied to an object divided by the distance traveled.
  • Work is the energy transferred to or from an object via the application of force along a displacement. (correct)
  • Work is the product of the force and the velocity of an object.

    • When does a force do positive work on an object?

  • When the force is applied at an angle to the displacement of the object.
  • When the force is applied in the same direction as the displacement of the object. (correct)
  • When the force is applied perpendicular to the displacement of the object.
  • When the force is applied in the opposite direction as the displacement of the object.

    • When does a force do negative work on an object?

  • When the force is applied perpendicular to the displacement of the object.
  • When the force is applied in the same direction as the displacement of the object.
  • When the force is applied in the opposite direction as the displacement of the object. (correct)
  • When the force is applied at an angle to the displacement of the object.

    • What is the work done by the gravitational force on a ball as it falls?

    <p>$ ext{Work} = ext{Weight} imes ext{Distance}$</p> Signup and view all the answers

    What is the work done by the gravitational force on a ball thrown upwards?

    <p>$ ext{Work} = ext{Weight} imes ext{Time}$</p> Signup and view all the answers

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