When an object floats in a fluid, which of the following statements is...
When an object floats, it displaces a volume of fluid equal to its own volume. According to Archimedes' principle, the buoyant force acting on the object is equal to the weight of the displaced fluid, which is also equal to the weight of the object.
View all questions of this test
When an object floats in a fluid, which of the following statements is...
Understanding Floating Objects in Fluids
When an object floats in a fluid, it is subject to the principles of buoyancy, which provide insight into the relationship between the object's weight and the weight of the fluid it displaces.
Archimedes' Principle
- This principle states that any object submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by the object.
- When an object floats, it displaces a volume of fluid equal to its own weight.
Weight Comparison
- Equal Weights: For an object to float, the buoyant force (upward) must equal the weight of the object (downward).
- Hence, the weight of the object is equal to the weight of the fluid displaced.
Floating vs. Sinking
- Floating: When the weight of the object (A) equals the weight of the fluid displaced (B), the object floats.
- Sinking: If the weight of the object is greater than the weight of the fluid displaced, the object sinks.
Conclusion
- Therefore, the correct statement is: The weight of the object is equal to the weight of the fluid displaced.
- This fundamental principle is essential for understanding various applications, from ships floating in water to balloons in the air.
In summary, the balance between the weight of the object and the weight of the fluid displaced is crucial for floating.