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Fluids
Introduction to Fluids
Question | Answer |
---|---|
Density EQ | Density = (mass)/(volume) = m/v |
Pressure EQ | Pressure = (Force acting on a surface)/(Area of that surface) = P = F/A; units are Pascals; 1 Pa = 1 N/m^2; also lb/in^2 |
Boyle’s Law EQ | (pressure)(volume) = constant PV = constant |
Buoyancy (1) | An upward force due to the difference in pressures in a submerged object |
Buoyancy (2) | The force acting upward on an object in a fluid equals the weight of the fluid displaced |
Boyle’s Law | The product of the (pressure of a gas)(volume of gas) is constant |
Atmospheric Pressure | Caused by the molecules being drawn downward by gravity of the earth creating a surface pressure; 15 lb/in^2 |
Barometer | a device for measuring atmospheric pressure; |
Pascal’s Principle | The pressure on a confined fluid is equal at all points |
Bernoulli’s Principle | The pressure in a flowing fluid is inversely proportional to the speed. |