What is the formula for calculating pressure?

The formula for calculating pressure is derived from the definition of pressure itself, which is the amount of force exerted over a specific area. This relationship is mathematically expressed as pressure being equal to force divided by area.

When pressure is applied, it is essential to understand how that force is distributed over the given area. For example, pressing on a surface with a specific force will generate a pressure that depends on how large that surface area is. If the same force is applied over a smaller area, the pressure increases, because the force is concentrated in a smaller space.

This fundamental concept in physics explains why option C is the correct expression for calculating pressure. It connects the physical meaning of pressure—how force acts across an area—with its mathematical representation.