Physics Laws & Theorems
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Bernoulli's Principle

Faster-moving fluid has lower pressure (energy conservation in flow).

Formula

P+12ρv2+ρgh=constP + \tfrac{1}{2}\rho v^2 + \rho g h = \text{const}

Variables

PPressure
\rhoDensity
vSpeed
hHeight

Example

Fast air over a wing has lower pressure than the slower air beneath — producing lift.

Did You Know?

Bernoulli's principle — faster flow, lower pressure — helps explain lift over an aircraft wing.

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