Here's how it works:

* Pascal's Principle: The foundation of hydraulics is Pascal's principle, which states that pressure applied to a fluid in a closed container is transmitted equally to every point within the fluid.

* Force and Area: Pressure is defined as force per unit area (Pressure = Force/Area). So, if you apply a force to a small area in a hydraulic system, the pressure created is transmitted equally to a larger area.

* Amplification: Because the pressure is the same throughout the system, the force on the larger area is amplified. The ratio of the areas determines the multiplication factor.

Example:

Imagine a hydraulic jack used to lift a car. You apply a small force to a small piston, creating a certain pressure. This pressure is transmitted to a larger piston connected to the jack. The larger piston has a much larger area, so the force it experiences is significantly amplified, allowing you to lift the car.

In summary: Hydraulic systems work by transmitting pressure equally throughout a fluid, which allows a smaller force applied to a smaller area to be multiplied into a larger force on a larger area.