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ARE Fluid Vocab
Vocabulary for pressure in fluids.
| Question | Answer |
|---|---|
| Fluid | a non-solid state of matter which the atoms or molecules, are free to move past each other, as in a gas or a liquid |
| Mass density | the mass per unit volume of a substance |
| Density | a measure of some physical property (usually mass) per unit length, area, or volume. |
| Buoyant force | a force that acts upward on an object submerged in a liquid or floating on the liquid’s surface. |
| Displacement | the change in position of an object. |
| Pressure | the magnitude of the force on a surface per unit area. |
| Atmospheric pressure | the pressure at any location on Earth, caused by the weight of the air column above it. |
| Temperature | a measure of the average kinetic energy of the particles in a substance |
| Ideal fluid | a fluid that has no internal friction or viscosity and that is incomprehensible. |
| Pascal’s Principle | the principle that external static pressure is exerted on a fluid is distributed evenly throughout the fluid. |
| Bernoulli’s Principle | a statement that states an increase in speed of a fluid produces a decrease in pressure and a decrease in speed produces an increase in pressure. |
| Lift | an upward force that causes an object to go up either by creating a low pressure area above the object or by decreasing the density of the object all together |
| Laminar flow | smooth flow of a fluid without turbulence |
| Turbulence | chaotic or eddying movement of a fluid |
| Ideal gas | a hypothetical gas whose particles bounce off each other with perfect elasticity |
| Boltzmann’s Constant | 1.38*10^-23 J/K |
| Viscosity | the ability of a fluid to resist flow |
| Relative Density | the ratio of an object’s density compared to another object |
| Archimedes’ Principal | any object submerged in a fluid experiences an upward buoyant force equal in magnitude to the weight of the fluid displaced |
| Gauge Pressure | the total pressure of a fluid in a given system without atmospheric pressure |
Created by:
Riley Eddleman
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