Physics

9th -

11thgrade

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Mechanical Advantage

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10 questions

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  • Multiple Choice
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    15 minutes
    1 pt
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    A 62 kg box is lifted 12 m off the ground. How much work was done? (hint: calculate weight of the box first)
    5.17 J
    72.91 J
    744.0 J 
    7291.2 J
  • Multiple Choice
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    45 seconds
    1 pt
    What is effort (input) force?
    the force required by a machine in order to accomplish work (the force you put on the machine)
    the force which an effort force must overcome in order to do work on an object via a simple machine.
    the force the machine exerts on a object
    the output work times the input distance
  • Multiple Choice
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    45 seconds
    1 pt
    What is resistance (output) force?
    the force required by a machine in order to accomplish work (the force you put on the machine)
    the force which an effort force must overcome in order to do work on an object via a simple machine.
    the force the machine exerts on a object
    the output work times the input distance
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