Question

Why do you think pressure acts on the area of a surface?​

Answer 1

Answer:

Pressure is a stress. It is a scalar given by the magnitude of the force per unit area. ... When we consider a sufficiently large area, so that the number of collisions on the surface during the interval \Delta t is large, then the average force that acts on the solid surface by the molecules is constant.

Answer 2

Answer:

Pressure is inversely proportional to the area of the surface, that is, a small area will provide greater pressure with the same amount of force applied. This means that a pointed needle will hurt more or exert more pressure than a plank of wood with the same force applied on both.