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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.

Want to explore more? Check you the full fluids playlist here: https://www.youtube.com/playlist?list=PLSQl0a2vh4HC7tmkuYc7nD8vIn2mOKQFS

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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