Properties of Fluids

Pressure is defined as the normal

Pressure is defined as the normal force (thrust) exerted per unit area: P = F/A. The SI unit is Pascal (Pa) or Nm⁻². For a liquid of density ρ at a de

When an object is submerged (fully

When an object is submerged (fully or partially) in a fluid, the fluid exerts an upward force called the buoyant force. Archimedes' Principle states:

Pascal's Law states

Pascal's Law states: when pressure is applied to any part of an enclosed liquid at rest, it is transmitted equally and undiminished to every point wit

Surface tension arises due to intermolecular

Surface tension arises due to intermolecular cohesive forces. Molecules deep inside a liquid are attracted equally from all sides (net force = zero).

The angle of contact (θ)

The angle of contact (θ) is the angle between the tangent to the liquid surface and the wall of the container, measured from within the liquid. If adh