Pressure

Definition:

Pressure is a fundamental concept , defined as the amount of force applied per unit area. 

Mathematically, pressure P is expressed as:

P = F / A

where:

• P is the pressure in Pascals (Pa).
• F is the force applied perpendicular to the surface in Newtons (N).
• A is the area over which the force is applied in m2

 Units:

Pressure is commonly measured in Pascals (Pa), which is equal to one Newton per square metre (N/m²). 

The pascal is the SI unit of pressure and is defined as one newton per square metre (N/m²). It is widely used in scientific and engineering contexts, providing a standard unit for pressure measurements.