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ARE Fluid Vocab

Vocabulary for pressure in fluids.

QuestionAnswer
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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