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Why does pressure in liquid not dependent on the surface area?

  1. Jul 10, 2013 #1
    is it because that pressure in liquid acts in all directions?
  2. jcsd
  3. Jul 10, 2013 #2


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    Because pressure is defined as the force/area. Since you've divided out the area, it is independent of area by definition.
  4. Jul 10, 2013 #3


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    Imagine you have been standing in a crowd of people for hours. How tired your feet get depends on your weight, not the weight of everyone in the crowd. If the crowd gets bigger the "weight per foot" doesn't get any larger.
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