Buoyancy

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Last updated 10:16 PM on 2/6/26
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9 Terms

1
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Buoyancy

The tendency of an object to float in a fluid due to an upward force

2
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Buoyant force (Fb)

The upward force exerted by a fluid on an object immersed in it

3
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Displaced fluid

The fluid pushed out of the way by the submerged part of an object

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Archimedes’ principle

The buoyant force of an object equals the weight og the fluid displaced by the object

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Buoyant force equations

Fb = weight of displaced fluid

Fb = Pfluid x Vdisplaced x g

Weight of displaced fluid = fluid density x volume displaced x gravity

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Weight equation

W = m x g

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Object floats

Fb > W

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Object sinks

Fb < W

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Object is suspended

Fb = W