What is the term for the lifting force of a liquid on a body?

The term for the lifting force of a liquid on a body is known as buoyancy. Buoyancy refers to the upward force that a fluid exerts on an object placed within it. This force enables objects, whether they are solid or hollow, to float or rise in a liquid, and its magnitude is determined by the weight of the fluid that is displaced by the object. According to Archimedes' principle, an object will float if the buoyant force is equal to or greater than its weight.

Understanding buoyancy is crucial in fields like fluid mechanics and engineering, as it impacts various applications such as ship design, underwater vehicles, and the behavior of objects in different fluids. In general, the concept of buoyancy is fundamental for grasping how objects interact with liquids and the conditions under which they remain submerged or float.