Fluid statics deals with fluids at rest and studies their behavior under various conditions without any motion.
Buoyancy refers to an upward force exerted by a fluid on an object immersed in it. It depends on the density difference between the object and fluid.
Pascal's Law: Pascal's law states that when pressure is applied to a confined fluid, it gets transmitted equally in all directions within that fluid.
Archimedes' principle states that an object submerged in a fluid experiences an upward buoyant force equal to the weight of displaced fluid.