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Physics Chapter 10

Fluids

TermDefinition
pascal the SI unit for pressure, N/m^2
atmosphere, torr, and milimeters of mercury other units for pressure
gauge pressure the absolute pressure minus the atmospheric pressure
Pascal's principle states that a change in pressure at any point in a confined fluid is transmitted everywhere throughout the fluid
buoyant force upward force experienced by an object submerged in a fluid, equal in magnitude to the weight of the fluid displaced by the object
steady (laminar) flow has no eddies or rotations in the flow of the fluid
streamline the path of a particle in a flowing incompressible fluid
incompressible flow means that the density of the fluid is constant in space and time
viscous fluid has frictional forces acting on it
ideal fluid an incompressible, non-viscous fluid that undergoes laminar flow
mass flow rate how quickly the mass is changing in time at a given point
Bernoulli's principle relates the pressure and velocity of one point to the pressure and velocity at another point, derived from the work-energy theorem
viscosity n the internal friction of a fluid
pascal*second the SI unit for viscosity
Created by: imr36093
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