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Pressure is the magnitude of the perpendicular force component exerted per unit area over a given surface area. Pressure is a scalar quantity. The pressure exerted by a fluid is the result of the interactions between the fluid’s particles and the surface with which those particles interact. The absolute pressure of a fluid at a given point is equal to the sum of a reference pressure, such as the atmospheric pressure, and the gauge pressure at that depth in the fluid. Pressure increases with depth in an incompressible fluid.
Sections:
00:00 - Intro
00:18 - What is pressure?
05:26 - Is pressure a scalar or vector?
09:43 - Pressure at a depth in an incompressible fluid
13:02 - Absolute and gauge pressure
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