What happens to the pressure of wind if its speed increases? Describe an experiment to prove it.

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Solution

The pressure of wind decreases when its speed increases.

Experiment:
Take two paper strips of 20 cm $\times$ 3 cm in each hand, facing each other in front of your mouth around 12 cm apart. Blow air between the strips. This will drop the air pressure between them as compared to stationary air around them, and they will separate. The greater pressure of surrounding air pushes the strips together. This shows that high speed wind has low pressure.

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