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.
Take away ideas and understandings. 1  Water vapor pressure increases with temperature. 2  Definitions of evaporation, evapotranspiration, condensation, and precipitation and how these processes relate to saturation water vapor pressure curve. 3  The presence of condensation nuclei are critical for the formation of clouds.