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17 Cards in this Set
- Front
- Back
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buoyant force
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The upward force that is a consequence of pressure in
a liquid increasing with depth. |
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pressure
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Force per unit area.
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meters squared, m²
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The SI unit of Area.
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equation for liquid pressure
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P = ϱ * g * h
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perpendicular
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When a liquid presses against surface, there is a net force that is ______ to the surface.
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ϱ (rho)
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The Greek letter that looks like a “p” without a stem, and stands for density.
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equally
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Liquid pressure is exerted ______ in all directions.
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buoyancy
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The apparent loss of weight experienced by objects submerged in a liquid.
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Archimedes' Principle
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An immersed object is buoyed up by a force equal to the weight of the fluid it displaces.
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volume of liquid
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A completely submerged object always displaces a ______ equal to its own volume.
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Pascal’s Principle
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A change in pressure at any point in an enclosed fluid at rest is transmitted to all points in the fluid.
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newton (N)
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The SI unit of Force.
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hydraulic press
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A device that lets us multiply forces by taking advantage of Pascal’s Principle.
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pistons
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“Plugs” that slide freely but snugly inside a tube, and are vital to the operation of hydraulic presses
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pascal
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The SI unit of Pressure, equal to one newton per square meter.
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depth
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Distance below the surface of a liquid.
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kilogram per meter cubed, kg/m³
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The SI unit of density.
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