Pressure in gases is due to collisions of molecules with the walls on the container. If a container is closed and left to stand, it will not collapse because the air molecules in the container exert an outward pressure equal to that of the atmospheric pressure acting...
Liquid column The taller the liquid column (with narrow base), the larger the amount of liquid contained, the greater the weight of the liquid to exert pressure The amount of pressure in the same liquid column is different at different depths. The greater the depth,...
Liquids are used in hydraulic systems to transmit forces from one part of a machine to another. Hydraulic Press An hydraulic press acts as a force multiplier. An effort force on piston A1 puts pressure on the liquid. The pressure is the same at all places in the...