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Energy vs Force

  1. Nov 2, 2014 #1
    1. The problem statement, all variables and given/known data

    Is the following statement true or false:

    "Energy is expended when a person exerts a force on an object."


    2. Relevant equations

    1) From the equation Work Done = Force x Distance, if a force is exerted, but no distance moved, then no work is done. Hence, the statement is false?

    2) However, when a person exerts a force, is he not expending chemical potential energy? In other words, there is an energy change from chemical to thermal. Hence, the statement is true?

    3. The attempt at a solution

    I am not sure which of the above is right. Will appreciate any help. Thank you!
     
  2. jcsd
  3. Nov 2, 2014 #2

    vela

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    Which statement jibes with your experience?
     
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