What is the correct term for the principle that states the pressure in hydraulic lines increases when pressure is applied to the brake pedal?

The principle that states the pressure in hydraulic lines increases when pressure is applied to the brake pedal is known as Pascal's principle. This principle, named after the French mathematician and physicist Blaise Pascal, states that when pressure is applied to a confined fluid, it is transmitted undiminished in all directions throughout the fluid. This is fundamental to hydraulic braking systems, where a small force applied to the brake pedal generates a much larger force at the brake pads on the wheels, allowing for effective stopping power.

Understanding Pascal's principle is crucial for grasping how hydraulic brakes function in vehicles. The design relies on this principle to ensure that the force from the braking system can be amplified, enabling effective transmission of force throughout the braking circuit. This results in a reliable and efficient braking system, which is essential for vehicle safety.