Mechanical Properties of Fluids — Important Questions

Buoyant force

Buoyant force is the upward force exerted by a fluid on a submerged or floating object, as described by Archimedes’ principle.

Weight of the displaced fluid

Archimedes’ principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.

Transmitted undiminished to every point

Pascal’s law states that pressure applied at any point in an enclosed fluid is transmitted equally and undiminished to all parts of the fluid.

Hydraulic lift

Hydraulic lifts use Pascal’s law to transmit pressure from a small piston to a larger one, enabling heavy loads to be lifted with small force.