Exam 4 Target 7 Retake Preap 16-17

5 Questions | Total Attempts: 65

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Exam 4 Target 7 Retake Preap 16-17

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Questions and Answers
  • 1. 
    If mechanical energy is conserved in a system, the energy at any point in time can be in the form of
    • A. 

      A. kinetic energy.

    • B. 

      B. gravitational potential energy.

    • C. 

      C. elastic potential energy.

    • D. 

      D. all of the above

  • 2. 
    Which of the following is not a form of mechanical energy?
    • A. 

      A. kinetic energy

    • B. 

      B. chemical potential energy

    • C. 

      C. gravitational potential energy

    • D. 

      D. elastic potential energy

  • 3. 
    Which of the following is a true statement about the conservation of energy?
    • A. 

      A. Potential energy is always conserved.

    • B. 

      B. Kinetic energy is always conserved.

    • C. 

      C. Mechanical energy is always conserved.

    • D. 

      D. Total energy is always conserved.

  • 4. 
    Friction converts kinetic energy to
    • A. 

      A. mechanical energy.

    • B. 

      B. nonmechanical energy.

    • C. 

      C. potential energy.

    • D. 

      D. total energy.

  • 5. 
    Why doesn’t the principle of mechanical energy conservation hold in situations when frictional forces are present?
    • A. 

      A. Kinetic energy is not completely converted to a form of potential energy.

    • B. 

      B. Potential energy is completely converted to a form of gravitational energy.

    • C. 

      C. Chemical energy is not completely converted to electrical energy.

    • D. 

      D. Kinetic energy is completely converted to a form of gravitational energy.

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