What is meant by pressure in physics?

Pressure in physics is defined as the force applied per unit area. When pressure is mentioned, it refers to how much force is exerted on a specific surface area. This concept is fundamental in understanding how fluids behave and how forces are transmitted through fluids, whether they are liquids or gases.

In practical terms, if you apply a force to a surface, the smaller the area over which that force is distributed, the greater the pressure exerted on that surface. For example, if you push a pin against a board, the small area of the pin's tip allows it to exert a high pressure that can puncture the board, despite the force being relatively small.

Understanding pressure is essential in various fields, including aerodynamics, hydraulics, and meteorology, and is crucial for pilots and engineers who work with aircraft and other systems affected by fluid dynamics.