The strength of the buoyant force acting on an object in a fluid is determined by the volume of fluid displaced by the object. This is known as Archimedes' principle.

Here's a breakdown:

* Buoyant force: An upward force exerted by a fluid that opposes the weight of an object submerged in it.

* Volume of fluid displaced: The amount of fluid that is pushed aside by the submerged object.

Archimedes' principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.

Therefore, a larger volume of fluid displaced results in a stronger buoyant force.

Factors affecting the volume of fluid displaced:

* The volume of the object: A larger object displaces more fluid.

* The density of the fluid: A denser fluid exerts a stronger buoyant force for the same volume displaced.

Let me know if you'd like to delve into any of these concepts further!