If you hold a light tissue in your hands and gently blow across its top, the tissue will rise slightly because
A) blowing across the tissue removes all of the air, and then the air below the tissue pushes the tissue up.
B) collisions of the moving air with the tissue cause it to rise.
C) the pressure of moving air is less than that of static air.
D) according to Archimedes' Principle, moving air exerts more buoyant force.

Question

Quizplus · Accepted Answer

When air moves, its pressure decreases due to Bernoulli's Principle. This means that the pressure below the tissue is greater than the pressure above it, causing the tissue to rise.

If You Hold a Light Tissue in Your Hands and Gently