What principle does Archimedes' principle state?

Archimedes' principle states that an object submerged in a fluid experiences a buoyant force that is equal to the weight of the fluid displaced by the object. This means that if you have an object partially or fully submerged in a liquid, it will experience an upward force, known as buoyancy. This force acts in opposition to gravity and is what allows objects to float or sink in a fluid.

The principle is foundational in understanding how floating and sinking work. When the buoyant force is greater than the weight of the object, the object will rise; if the buoyant force equals the weight, the object will float; and if the weight of the object is greater than the buoyant force, it will sink.

This concept is central to various applications, including ship design and understanding how different materials behave in water. Other options may touch on aspects related to buoyancy and density but do not capture the essence of Archimedes' principle as accurately as the correct choice.