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Eleri Davies Momentum and Energy Quiz
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Eleri Davies Momentum and Energy Quiz

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Questions and Answers

What is the formula for the final velocity of the coupled object in an inelastic collision?

  • v′ = (m1 + m2) / (m1v1 + m2v2)
  • v′ = (m1v1 + m2v2) / (m1 + m2) (correct)
  • v′ = m1v1 + m2v2
  • v′ = m1 + m2

    • What is the formula for work when force is multiplied by distance in the direction in which the force acts?

  • Work = Force * Distance (correct)
  • Work = Force / Distance
  • Work = Force + Distance
  • Work = Force * Distance * Speed

    • Which equation represents the potential energy of an object due to its position or state?

  • PE = gh
  • PE = mh
  • PE = mg
  • PE = mgh (correct)

    • What is power defined as in relation to work?

    <p>Power = Work done / Time interval</p> Signup and view all the answers

    What happens to momentum in an inelastic collision?

    <p>Momentum is conserved</p> Signup and view all the answers

    What is the relationship between momentum and mass and velocity?

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

    What is the relationship between impulse and force and contact time?

    <p>Impulse is directly proportional to force and contact time</p> Signup and view all the answers

    How does the change in momentum relate to impulse?

    <p>The change in momentum is directly proportional to the impulse</p> Signup and view all the answers

    What is the law of conservation of momentum?

    <p>The total momentum of a system remains unchanged in the absence of external forces</p> Signup and view all the answers

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