Forces in Fluids

Welcome to another set of physics vocabulary flashcards introducing you to (1) Fluid Pressure; (2) Forces and Pressure in Fluids; (3) Buoyancy; and (4) Bernoulli's Principle as it applies to flight. If you are looking for additional learning materials, please visit my science website "Mitchell's Cosmic Adventure".

37 cards | Total Attempts: 189 | Created by John_Mitchell_WV | Last updated: Mar 29, 2016 | Total Attempts: 189

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Pressure

Cards In This Set

Front	Back
Pressure	Is a measure of force per unit area. It is usually more convenient to use pressure rather than force to describe the influences upon fluid behavior.
Pressure Formula	Pressure = Force / Area; Force should be measured in newtons (N) and area should in measured in squared meters (m²)
Pascal (Pa)	Is the resulting unit, newtons per square meter is the metric unit or pressure.
Blaise Pascal (1623-1662) -	Born in 1623 in Clermont, France, Blaise Pascal is one of the most well known mathematicians of all times.
Kilopascals (kPa)	Pressures are very often the unit used in measurements. 1 kPa is equal 1 000 Pa.
Fluid	Is a substance that assume the shape of it's container. A substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid.
Bar	One bar is the force of 100 000 Pa or 1.0 x10⁵ N/m².
Millibar (mb)	1 mb is equal 0.001 bar = 100 Pa.
Atmospheric Air Pressure	Is often given in millibars where standard sea level pressure is defined as 1013 mbar, 101.3 (kPa), or 1.01325 bar.
Pascal's Principle	Is a change in pressure at any point in a fluid is transmitted equally and unchanged in all directions through the fluid.
Atmospheric Acoustics	Is the science of sound waves in the open air.
Hydraulic System	Is a device that uses or is operated by a liquid moving in a confined space under pressure.
Hydraulic Lift System	Is a type of machine that uses a hydraulic apparatus to lift or move objects using the force created when pressure is exerted on liquid in a piston. Force then produces "lift" and "work."
Daniel Bernoulli (1700 - 1782) -	He is most prominent for his applications of mathematics to mechanics, particularly fluid mechanics, and for his exceptional work in probability and statistics.
Bernoulli's Principle	States that for an inviscid flow of a nonconducting fluid, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.