Which of the following is described in the definition: An object immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object?

The statement describes Archimedes' principle, which states that an object submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid that the object displaces. This principle is fundamental to understanding buoyancy and how floating and sinking works. When an object is in a fluid, it displaces some of that fluid, and the weight of the displaced fluid creates an upward force on the object.

This concept is essential in various applications, including ship design, swimming, and even in understanding why objects behave differently in different fluids. The principle helps to explain why some objects float while others sink, directly relating to their density compared to the liquid in which they are submerged.

The other options reference different scientific principles: Charles' law deals with gas behavior related to temperature and volume; Boyle's law involves the relationship between pressure and volume of a gas at constant temperature; and Anderson's principle, which is less commonly known, does not pertain to fluid dynamics in the same way. Thus, Archimedes' principle is the accurate choice concerning buoyancy.