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

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

• A. Bernoulli's Principle
• B. Hooke's Law
• C. Pascal's Law
• D. Archimedes' Principle

Answer: (D)

Buoyancy is described by Archimedes' principle: the upward buoyant force on a body immersed in a fluid equals the weight of the fluid it displaces. This comes from the way fluid pressure increases with depth, creating a larger pressure force on the bottom surface than on the top, yielding a net upward force that is exactly the weight of the displaced fluid. The statement given matches this principle precisely. The other principles address different phenomena. Bernoulli's principle deals with changes in pressure due to fluid speed in a flow, not static buoyancy. Hooke's Law relates force to displacement in springs. Pascal's Law concerns the transmission of pressure in incompressible fluids. None of these directly state that the buoyant force equals the weight of displaced fluid.

Buoyancy is described by Archimedes' principle: the upward buoyant force on a body immersed in a fluid equals the weight of the fluid it displaces. This comes from the way fluid pressure increases with depth, creating a larger pressure force on the bottom surface than on the top, yielding a net upward force that is exactly the weight of the displaced fluid. The statement given matches this principle precisely.

The other principles address different phenomena. Bernoulli's principle deals with changes in pressure due to fluid speed in a flow, not static buoyancy. Hooke's Law relates force to displacement in springs. Pascal's Law concerns the transmission of pressure in incompressible fluids. None of these directly state that the buoyant force equals the weight of displaced fluid.