Water Displacement: Floating vs Submerged Objects

In summary, the main difference between the amount of water displaced by a floating versus a submerged object is that for a submerged object, the volume of water displaced is equal to the volume of the object, while for a floating object, it displaces a water weight equal to its own weight. Additionally, the density of the object and the water play a role in determining whether the object will float or not.
  • #1
kuhatelyn
10
0
difference between the amount of water displaced by a floating vs submerged object??

I'm so confused.

Let's say you have the mass and density of a floating object. How would you find the volume of the water displaced? And how is this different from finding the volume of water displaced by the object if it were submerged?

PLEASE HELP!
 
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  • #2


For a submerged object, the volume of water displaced is equal to the volume of the object.

For a floating object, it will displace a water weight equal to the object weight.

So you don't need to know the density of the object, except to verify if it is greater than or less than the density of water. That determines if it will float or not. But you will also need to know the density of the water.
 

FAQ: Water Displacement: Floating vs Submerged Objects

What is water displacement?

Water displacement is the phenomenon where an object placed in water causes the water to move aside, making room for the object. This displacement of water is equal to the volume of the object.

What is the difference between floating and submerged objects?

Floating objects are those that remain on the surface of the water due to their density being less than that of water. Submerged objects, on the other hand, have a density greater than that of water and therefore sink below the surface.

How does water displacement affect the weight of an object?

The weight of an object in water is equal to its weight in air minus the weight of the water it displaces. This is known as the buoyant force, and it causes objects to feel lighter when submerged in water.

Does the shape of an object affect its ability to float or sink?

Yes, the shape of an object does affect its ability to float or sink. Objects with a larger surface area tend to float better as they displace more water, while objects with a smaller surface area tend to sink faster.

What other factors besides density affect water displacement?

The temperature and salinity of the water can also affect water displacement. Cold water is denser than warm water, and saltwater is denser than freshwater, so objects may float or sink differently depending on the conditions of the water.

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