Buoyancy is the upward force exerted by a fluid that opposes the weight of an immersed object. This physical principle dictates that the buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the volume of the object. The relative density of the object compared to the fluid determines whether the object will float, sink, or remain suspended at a particular depth. Objects immersed in a fluid experience a net force resulting from the upward buoyant force and the downward force of gravity acting on the object’s mass. This relationship is foundational in fluid mechanics and is utilized in various scientific and technological applications involving the flotation and movement of bodies within liquid mediums.