Chapter 7 Practice Quiz Cpl - Period 1 - Friday, 4/17/20

5 Questions | Total Attempts: 29

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Chapter 7 Practice Quiz Cpl - Period 1 - Friday, 4/17/20

Archbishop Wood High School Physics 9 CPL – Period 1 Date: 4/17/20 Chapter 7 Practice Quiz – Machines, Work, and Energy Ms. Antes DIRECTIONS: Identify the choice that best completes the statement or answers the question.


Questions and Answers
  • 1. 
    The metric unit for work is the:
    • A. 

      Newton.

    • B. 

      Joule.

    • C. 

      Watt.

    • D. 

      Meter.

  • 2. 
    In a theoretical machine, work output:
    • A. 

      Can be calculated by dividing output displacement by output force.

    • B. 

      Is always greater than the work input.

    • C. 

      Can be calculated by multiplying output force by output displacement.

    • D. 

      Is always less than the work input.

  • 3. 
    All of the following are considered to be simple machines EXCEPT:
    • A. 

      Scissors.

    • B. 

      A bicycle.

    • C. 

      A jackknife.

    • D. 

      A see-saw.

  • 4. 
    The fixed point around which levers rotate is called the:
    • A. 

      Input Arm.

    • B. 

      Output Arm.

    • C. 

      Fulcrum.

    • D. 

      Lever Arm.

  • 5. 
    Friction is a “catch-all” term for many processes that oppose:
    • A. 

      Heat.

    • B. 

      Wear.

    • C. 

      Motion.

    • D. 

      Temperature.

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