Force - A push or pull acting upon a body. In a hydraulic cylinder, it is the product of the pressure on the fluid, multiplied by the effective area of the cylinder piston. It is measured in pounds or tons. Friction - The resistance to fluid flow in a hy- draulic system.
temperature increase The pressure of a contained sample of gas can be increased by increasing its temperature, or by decreasing its volume, or by injecting additional mas â¦ s into it.
One way to think of this is if you increase the speed of the molecules âby increasing their temperature-the force of the molecules hitting their container increases and this increases the pressure.This relationship is called Gay-Lussacâs Law and makes up part of the ideal gas law.ne way to think of this is if you increase the speed of the molecules âby increasing their temperature-the force of the molecules hitting their container increases and this increases the pressure.