This buoyant force illustration depicts an object's proclivity to float in a fluid. In the presence of gravity, all liquids and gases exert an upward force known as the buoyant force on any object immersed in them. Buoyancy is caused by pressure differences acting on opposing sides of an object immersed in a static fluid. You will be able to explain the buoyant force and why fluids exert an upward buoyant force on submerged objects after reading this article. The buoyant force is the upward force exerted on an object immersed entirely or partially in a fluid. Upthrust is another name for this upward force. A body submerged partially or completely in a fluid appears to lose buoyancy due to buoyant force.