Conservation of Energy and Mechanical Work Quiz
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Questions and Answers

Which of the following best describes the conservation of energy?

  • Energy is only conserved in mechanical systems.
  • Energy cannot be created or destroyed, only transformed from one form to another. (correct)
  • Energy conservation is not applicable to work done.
  • Energy can be created or destroyed depending on the system.
  • What is the relationship between mechanical energy and work?

  • Mechanical energy is not affected by work done on a system.
  • Work can only be done on non-mechanical systems.
  • Work can change the amount of mechanical energy in a system. (correct)
  • Mechanical energy and work are completely independent of each other.
  • In the context of energy conservation, what happens when work is done by a system?

  • The energy in the system remains constant regardless of work done.
  • The system gains energy from the surroundings.
  • The system loses energy, which is transferred to the surroundings. (correct)
  • Work cannot be done by a system in the context of energy conservation.
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