What does Pascal's principle state?

Pascal's principle, also known as Pascal's law, states that when pressure is applied to a confined fluid, that pressure change is transmitted equally in all directions throughout the fluid. This is fundamental in understanding how hydraulic systems operate, such as car brakes or hydraulic lifts. In these systems, applying a small force on one area of the fluid generates a much larger force in another area due to the same pressure being transmitted throughout the fluid medium.

This principle underpins many mechanical systems where fluids are involved and is crucial for ensuring that forces are distributed evenly, allowing for efficient operation and force multiplication in devices that utilize hydraulics. Understanding this principle is key to mastering concepts in fluid mechanics and applications in engineering and technology.