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SESK: Stuff Everyone Should Know · sesk.info/aero-bernoulli-pressure-drop

What happens to a fluid's pressure when its speed increases?

Its pressure decreases.

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  1. It decreases ✔
  2. It stays fixed
  3. It increases

Why: Air is a fluid. Bernoulli's principle says faster-moving air has lower pressure, one part of understanding airflow around a wing.

Huh, didn't know that: A narrowed venturi makes air speed up while its pressure falls.

The dad joke
Why did the air hurry past the wing? It was under less pressure!
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References

Answer: It decreases. Air is a fluid. Bernoulli's principle says faster-moving air has lower pressure, one part of understanding airflow around a wing.

  1. Bernoulli's Equation www.grc.nasa.gov/www/k-12/airplane/bern.html
    From a conservation of energy and momentum, the static pressure plus the dynamic pressure is equal to the original total pressure in a flow
    Checked 2026-10-10.

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