Archimedes’ principle states that a body immersed in a fluid experiences an upward force equal to
Show answer & explanation
Correct answer: C
Explanation
Correct Answer:
The weight of the fluid displaced
Explanation:
Archimedes' principle states that any object, wholly or partially immersed in a stationary fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. This upward buoyant force enables objects to float or feel lighter in water and is fundamental to hydrostatics.
Key Points:
• The buoyant force acts vertically upward through the center of gravity of the displaced fluid.
• This principle was discovered by the ancient Greek mathematician and engineer Archimedes of Syracuse.
• It is widely applied in designing ships, submarines, and hot-air balloons.
Important Questions and Answers:
Question: What is the upward force exerted by a fluid on an immersed object called?
Answer: Buoyant force (or upthrust).
Question: Who formulated the physical law known as Archimedes' principle?
Answer: Archimedes.