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Mr_mills, AAA, Physical Science


any material that can flow and that takes the shape of its container


the amount of force exerted on a given area; expressed in pascals


the SI unit of pressure; equal to the force of 1 N exerted over an area of one square meter

Atmospheric Pressure

the pressure caused by the weight of the atmosphere


the amount of matter in a given space; d=m/v

Pascal's Principle

change in pressure at any point in an enclosed fluid is transmitted equally to all parts of the fluid

Buoyant Force

the upward force that fluids exert on all matter; buoyant force opposes gravitational force

Archimedes' Principle

States that the buoyant force on an object in a fluid is an upward force equal to the weight of the volume of fluid that the object displaces

Bernoulli's Principle

says that an increase in the speed of the motion of fluid decreases the pressure within the fluid


an upward force on an object (such as wings) that opposes the downward pull of gravity; differences in pressure above and below the object contribute to lift


the forward force produced by an airplane's engines; thrust opposes drag


The force that opposes or restricts motiion in a fluid; drag opposes thrust.

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