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What is the scientific definition of a buoyant force?
The buoyant force is an upward force exerted by a fluid on an object submerged in it, equal to the weight of the fluid displaced by the object. It is responsible for objects floating in a fluid or experiencing a net upward force when partially or fully submerged.
How does the buoyant force on a fully submerged object compare with the water displaced?
The buoyant force on a fully submerged object is equal to the weight of the water displaced. In fact, that's also true of a floating object.
Does a floating object weigh more when underwater?
No, a floating object displaces its weight in water, creating an upward buoyant force equal to the weight of the water displaced. Therefore, the object weighs the same whether it is floating on the surface or submerged underwater.
What can you say about the buoyant force of an object floats in a fluid?
The buoyant force acting on an object floating in a fluid is equal to the weight of the fluid displaced by the object. This force is responsible for keeping the object afloat and is determined by the density of the fluid and the volume of the submerged part of the object. Objects will float when the buoyant force is greater than or equal to the weight of the object.
How does the amount of buoyant force exerted by water vary with the volume of submerged solid?
The amount of buoyant force is equal to the weight of the displaced water. The VOLUME of the displaced water is equal to the part of the solid that is submerged - thus, the buoyant force is equal to this volume, times the density of the water.
Does a submerged piece of lead have more buoyant force than a floating piece of styro foam?
Yes
What is the scientific definition of a buoyant force?
The buoyant force is an upward force exerted by a fluid on an object submerged in it, equal to the weight of the fluid displaced by the object. It is responsible for objects floating in a fluid or experiencing a net upward force when partially or fully submerged.
Why will a volleyball held beneath the surface of water have more buoyant force than if it is floating?
A volleyball submerged beneath the surface of water experiences a greater buoyant force because buoyancy is determined by the volume of water displaced. When fully submerged, the volleyball displaces a volume of water equal to its own volume, generating maximum buoyant force according to Archimedes' principle. In contrast, when floating, the volleyball displaces only a portion of its volume, resulting in a lower buoyant force. Thus, the buoyant force is maximized when the volleyball is completely submerged.
How does the buoyant force on a fully submerged object compare with the water displaced?
The buoyant force on a fully submerged object is equal to the weight of the water displaced. In fact, that's also true of a floating object.
Does a floating object weigh more when underwater?
No, a floating object displaces its weight in water, creating an upward buoyant force equal to the weight of the water displaced. Therefore, the object weighs the same whether it is floating on the surface or submerged underwater.
What scientific rule states that the buoyant force an an object is equal to the weight of the fluid displaced by the object?
Since the object is submerged, we know that the buoyant force is not sufficient to overcome the weight of the object, otherwise it would be floating rather than being submerged. Therefore, the buoyant force is equal to the weight of the displaced water, not the weight of the object itself.
Does duckweed float or partially submerged or completely submerged?
Duckweed typically floats on the surface of water due to its buoyant nature. However, it can sometimes become partially submerged depending on factors such as water flow or the presence of other floating vegetation.
What can you say about the buoyant force of an object floats in a fluid?
The buoyant force acting on an object floating in a fluid is equal to the weight of the fluid displaced by the object. This force is responsible for keeping the object afloat and is determined by the density of the fluid and the volume of the submerged part of the object. Objects will float when the buoyant force is greater than or equal to the weight of the object.
What happens when the weight of a submerged is exactly equal to the buoyant force?
The submerged will float
How does the amount of buoyant force exerted by water vary with the volume of submerged solid?
The amount of buoyant force is equal to the weight of the displaced water. The VOLUME of the displaced water is equal to the part of the solid that is submerged - thus, the buoyant force is equal to this volume, times the density of the water.
Does the buoyant force on a submerged inflated balloon increase as it sinks?
No, it actually might decrease due to balloon being compressed by pressure. Floating objects are governed by Archimedes Principle which states that the weight of a floating object is equal to the water it displaces. A corollary of Archimedes Principle is that the buoyant force acting on an object is equal to the volume of water displaced. Therefore, when a balloon is compressed as it submerges it displaces less water and the buoyant force decreases proportionately.
Why does buoyant force act upward on an object submerged in water?
Buoyant force acts upward on an object submerged in water due to the difference in pressure exerted by the water at different depths. The pressure at greater depths is higher, leading to a greater force pushing upward on the object, thus creating the buoyant force that opposes gravity. This buoyant force helps objects float or experience less weight when submerged in water.
