Work And Simple Machines Block 1

20 Questions | Total Attempts: 40

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Machine Quizzes & Trivia

This quiz is designed to be used as an assessment following the use of my multimedia website.


Questions and Answers
  • 1. 
    The transfer of energy that occurs when a force makes an object move a distance.
    • A. 

      Force

    • B. 

      Work

    • C. 

      Power

    • D. 

      Joule

  • 2. 
    A baseball bat is an example of this class of lever:
    • A. 

      First-class

    • B. 

      Second-class

    • C. 

      Third-class

  • 3. 
    SI unit for power
    • A. 

      Joule

    • B. 

      Watt

    • C. 

      Newton

  • 4. 
    All of these are examples of inclined planes except:
    • A. 

      Slide

    • B. 

      Ramp

    • C. 

      Staircase

    • D. 

      Wheel

  • 5. 
    The amount of work done per unit of time
    • A. 

      Power

    • B. 

      Mechanical advantage

    • C. 

      Work

    • D. 

      Force

  • 6. 
    The number of times a machine multiplies an effort force.
    • A. 

      Energy

    • B. 

      Mechanical advantage

    • C. 

      Input force

    • D. 

      Output force

  • 7. 
    Which is not an example of a wedge?
    • A. 

      Ax

    • B. 

      Knife

    • C. 

      Ramp

    • D. 

      Scissors

  • 8. 
    SI unit of measurement for energy and work.
    • A. 

      Watt (W)

    • B. 

      Newton (N)

    • C. 

      Joule (J)

  • 9. 
    A flag pole is an example of this type of pulley:
    • A. 

      Fixed

    • B. 

      Movable

    • C. 

      Block and tackle

    • D. 

      Pulley system

    • E. 

  • 10. 
    An ax is an example of a (an)
    • A. 

      Inclined plane

    • B. 

      Wheel and axle

    • C. 

      Pulley

    • D. 

      Wedge

  • 11. 
    Which job would be best done by a wedge?
    • A. 

      Slicing an onion

    • B. 

      Pulling a box

    • C. 

      Lifting a bucket

    • D. 

      Moving a fork

  • 12. 
    In which of the following is no work done?
    • A. 

      Lifting weights up over your head

    • B. 

      Lifting a book

    • C. 

      Pushing on a wall

    • D. 

      Pushing an object 3 meters

  • 13. 
    The efficiency of a machine is always less than 100 percent because
    • A. 

      The work input is too small

    • B. 

      The work output is too small

    • C. 

      A machine can't have a mechanical advantage less than 1

    • D. 

      Some work input is lost to friction and heat

  • 14. 
    When the kinetic energy of an object increases, which of the following also increases?
    • A. 

      Force

    • B. 

      Velocity

    • C. 

      Potential energy

    • D. 

      Gravitational pull

  • 15. 
    Which type of pulley has the greatest mechanical advantage?
    • A. 

      Fixed

    • B. 

      Moveable

    • C. 

      Compound or pulley system

  • 16. 
    A simple machine that is a rigid bar that has to move around a fixed point called a fulcrum.
    • A. 

      Pulley

    • B. 

      Screw

    • C. 

      Lever

    • D. 

      Wheel and axle

  • 17. 
    If a tractor pulls a trailer 600 m with a force of 1,300 N, how much work would it be doing?
    • A. 

      780,000 W

    • B. 

      780,000 J

    • C. 

      780,000 N

    • D. 

      78,000 J

  • 18. 
    A wheel barrow is which class of lever?
    • A. 

      First class

    • B. 

      Second class

    • C. 

      Third class

  • 19. 
    The force exerted on an object by a machine may be called any of the following except.
    • A. 

      Output force

    • B. 

      Input force

    • C. 

      Load

    • D. 

      Resistance

  • 20. 
    If you exert a force of 10.0 N to lift a box a distance of 0.75 m, how much work do you do?  
    • A. 

      7.5 J

    • B. 

      75 J

    • C. 

      75 N

    • D. 

      7.5 N

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