How is water pressure defined?

Water pressure is defined as the force exerted by water per unit area. This concept is fundamental in understanding how fluids behave and is critical in various applications, including plumbing, hydraulics, and water supply systems. Pressure is typically measured in units such as pascals (Pa) or pounds per square inch (psi), and it reflects how much force the water exerts on the surfaces in contact with it.

In practice, when water accumulates in a tank, the weight of the water contributes to the pressure; however, it is the force applied over a specific area that characterizes water pressure itself. The correct definition emphasizes that pressure is not just about the amount of water or its flow speed, but rather the intensity of the force it exerts on surfaces at a given point.