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OAT Physics
Chapter 5 - Fluids and Solids (Review)
Term | Definition |
---|---|
Fluids | liquids and gases |
Density | = m/V |
Work | =DVg |
specific gravity | the ratio of the density of a substance to the density of water |
Density of water | 1000kg/m^3 |
Absolute Pressure | = Po + Dgh |
Gauge Pressure | Pg = P-Patm |
Pascal's Principle | a change in pressure applied to an enclosed fluid is transmitted to every portion of the liquid |
Change in pressure (Pascal) | = F1/A1 = F2/A2 |
V (Pascal) | = A1d1 = A2d2 |
Archimedes' Principle | a body wholly or partially immersed in a fluid will be buoyed up by a force equal to the weight of the fluid it displaces |
adhesion | attractive force a molecule of a liquid feels toward molecules of another substance; water sticking to winshiedl |
cohesion | attractive force a molecule of a liquid feels to other molecules of the same liquid; water with water; why water stays on a coin in a bubble |
continuity equation | v1A1 = v2A2; in narrow passages the flow is faster than in wider passages |
viscosity | frictional force in a fluid |
Modulus Eq | Y = (F/A)/(delta L/L); stress/strain; large means strong material |
Shear Modulus | only solids experience this; stress over strain; S = (F/A)/(x/h) |
Bulk Modulus | B = delta P/(delta V/V) |