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Topic: Fluid pressure


  
  Fluid pressure - Wikipedia, the free encyclopedia
Fluid pressure is the pressure at some point within a fluid, such as water or air.
Pressure in open conditions usually can be approximated as the pressure in "static" or non-moving conditions (even in the ocean where there are waves and currents), because the motions create only negligible changes in the pressure.
The concepts of fluid pressure are predominantly attributed to the discoveries of Blaise Pascal and Daniel Bernoulli.
en.wikipedia.org /wiki/Fluid_pressure   (195 words)

  
 Pressure
Pressure in a fluid can be seen to be a measure of energy per unit volume by means of the definition of work.
Pressure in a fluid may be considered to be a measure of energy per unit volume or energy density.
The most obvious application is to the hydrostatic pressure of a fluid, where pressure can be used as energy density alongside kinetic energy density and potential energy density in the Bernoulli equation.
hyperphysics.phy-astr.gsu.edu /hbase/press.html   (528 words)

  
 Pressure
The pressure in a static fluid arises from the weight of the fluid and is given by the expression
The fluid pressure at a given depth does not depend upon the total mass or total volume of the liquid.
Note that this static fluid pressure is dependent on density and depth only; it is independent of total mass, weight, volume, etc. of the fluid.
hyperphysics.phy-astr.gsu.edu /hbase/pflu.html   (179 words)

  
 Fluid Pressure
Gases and liquids are fluids, although sometimes the dividing line between liquids and solids is not always clear.
The total pressure is the same as absolute pressure on pressure gauges readings, while the gauge pressure is the same as the fluid pressure alone, not including atmospheric pressure.
Find the pressure on a scuba diver when she is 12 meters below the surface of the ocean.
www.grc.nasa.gov /WWW/K-12/WindTunnel/Activities/fluid_pressure.html   (418 words)

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