Some Basic Principles of Fluid Pressure

Whenever possible, fluids (liquids and gases) will flow from regions of high pressure to regions of low pressure.

If all other variables remain unchanged, decreasing the volume of a fluid increases the pressure in the fluid, and increasing the volume of a fluid decreases the pressure of the fluid.

The pressure in a liquid with a given weight density depends only upon depth. In other words, all points at the same depth in a given liquid are at the same pressure. Pressure in a liquid at a given depth is equal to the weight density of the liquid multiplied by the depth of the liquid.

Pressure in a liquid = (weight density) x (depth)

Pressure in a liquid = (weight / volume) x (depth)

In a stationary liquid and at a constant depth, pressure is exerted equally on all container walls.

If all other variables remain unchanged, decreasing the volume of a fluid increases the pressure in the fluid, and increasing the volume of a fluid decreases the pressure of the fluid.

The pressure in a liquid with a given weight density depends only upon depth. In other words, all points at the same depth in a given liquid are at the same pressure. Pressure in a liquid at a given depth is equal to the weight density of the liquid multiplied by the depth of the liquid.

Pressure in a liquid = (weight density) x (depth)

Pressure in a liquid = (weight / volume) x (depth)

In a stationary liquid and at a constant depth, pressure is exerted equally on all container walls.