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Pressure. Pressure. P=F/A P=Pressure (Pa) F=Force (N) A=Area (m 2 ). Magnitude of the force on a surface per unit area. Pascal’s principle. Applied pressure is transmitted equally throughout a fluid. Hydraulic lift.
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Pressure P=F/A P=Pressure (Pa) F=Force (N) A=Area (m2) • Magnitude of the force on a surface per unit area
Pascal’s principle • Applied pressure is transmitted equally throughout a fluid.
Hydraulic lift • A small F1 applied to a small A1 is the same as a large F2 applied to a large A2
Pressure varies with depth in a fluid • P= P0+ρgh • P= Absolute Pressure(Pa) • P0=atmospheric pressure (Pa) • ρ=density kg/m3 • g= gravity m/s2 • h=height (depth) m