Question

What is meant by air pressure?

a.The force of air (F)
b.The force of air per distance (F/d)
c.The force of area per area (F/A)
d.The force of air per volume (F/V)

Answer 1

The pressure exerted on a surface is by definition the ratio of the force acting on the surface divided by the area of the surface:

P = F/A

P = pressure, F = force, A = area

Choice C