Question

What is pressure? How does it change with area?

Answer 1

in one area how force are created is called pressure.Area and pressure are opposite with each other.

Answer 2

In the case of contact forces between two objects as the area of contact between the two increases the pressure per square unit of measure with decrease.This is why a doctor can give you an injection with relitivly little pressure,the surface area of the point of the needle is tiny.