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Science Chapter 13

Vocab

TermDefinition
pressure the result of a force distributed over an area
pascal the SI unit for pressure
fluid a substance that assumes the shape of its container
hydraulic system a device that uses pressurized fluid acting on pistons of different sizes to change a force
lift the pressure difference between the top and the bottom of the wing creates an upward force
buoyancy the ability of a fluid to exert an upward force of an object placed in it
buoyancy force this upward force, which acts in the opposite direction of gravity
Archimedes' priniciple the buoyant force on an object is equal to the weight of the fluid displaced by the object
Created by: lizzyhearts432