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How is buoyancy and density related?

Updated: 8/10/2023
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10y ago

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Higher the difference of water density to object density is higher buoyancy force.

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11y ago
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14y ago

For a full explanation of how the buoyancy principle works and how it relates the helium and hot air balloons go to the related question "What is the buoyancy principle?" in the Related Questions section below.

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11y ago

Yes. Buoyancy force = weight of liquid displaced.If an object is less dense than the liquid, it floats. In this case no liquid is displaced. If the object is more dense than th4 liquid, it will sink displacing some liquid. the displaced liquid weight is the buoyancy force.


This is tricky, because the connection is not as direct as people think. Buoyancy is actually directly related to the VOLUME of a submerged object. Two submerged objects of identical size will have the same buoyancy, regardless of their weights. The total buoyant force on an object is equal to the weight of the water the object displaces. So if a submerged object that weighs 10 pounds displaces three pounds of water, the buoyant force is three pounds, and the object will have an apparent weight of seven pounds. In that case, the object will sink. What else can we conclude from that? Obviously, the 10-pound object mentioned above is denser than water. Why? Because the object weighs 10 pounds but the equivalent volume of water it displaces weighs only three pounds. What if an object of the same size but weighing only two pounds were submerged? It, too, would displace three pounds of water. The net buoyant force on it is, therefore, three pounds. Since it weighs only two pounds, there is a net upward force on the object of one pound. So that object floats! The density of that object is obviously less than water because the weight of the water it displaces is greater than the weight of the object.

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10y ago

(DrStrong) They are related through Archimedes' principle,

FB = ρgV

where FB is the buoyancy force, ρ is the density of the liquid, g is gravity, V is the volume of water displaced by the object (in other words, the volume of the object that lies underneath the water surface).

If FB is greater than the weight of the object, the object will float upwards. If not, the object will sink downwards.

So, the denser the liquid, the GREATER the buoyancy. However, the greater the object weight, the less the buoyancy. Another way to look at it is that the object itself has a volume and density, the product of which is the weight. So if a totally submerged object has less density than the liquid, it will be buoyant. If it has greater density than the liquid, it will sink.Rate This Answer

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14y ago

The denser something is, the less easily it can float. So there is an inverse relationship between density and bouyancy.

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10y ago

Convection is the transfer of heat, which is determined by density.

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have you bayab

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Q: How is buoyancy and density related?
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Related questions

What is buoyancy and how is it affected by density?

Buoyancy is the factor of things that float or sink. Density is related because if the object has more density than water, it will sink. But, if it has less density than water, the object will float.


Buoyancy exerted by a fluid is directly related to which property of the fluid?

Its density.


What is buoyancy determined by?

The amount of buoyancy an item has is determined by its weight in comparison to its volume (or simply put, its density) The less dense it is, the more buoyant it is. For a full explanation of how buoyancy works go to the related question "What is the buoyancy principle?" in the Related Questions section below.


What is the effect of density on the buoyancy of an object?

greater density tends to less buoyancy


What is the relationship between density and buoyancy for objects and substances?

The higher the density the lower the buoyancy.


When does an object have positive buoyancy?

A body has positive buoyancy when its density is lower than the density of the fluid the body is in.


In terms of buoyancy how does a life jacket save your life?

A life jacket is also known as a floatation or buoyancy aid - it acts to increase your buoyancy. So what do we mean by this? Well, buoyancy can be described simply as how easily an object will float in a fluid (or gas), where the more buoyant the object the better it will float. Buoyancy is related to the density of an object which is in turn related to the amount of mass a given object has relative to it's volume. As the density of an object gets larger compared to the density of the fluid it is floating in, its buoyancy will decrease and it will become less able to float. As the density of the object becomes larger than the density of the fluid it is floating in, it will sink. Now that we understand buoyancy, we can explain how a life jacket works. A life jacket is mainly filled with gas which has a very low mass. As such when worn by a person, it acts to significantly increase their volume for only a very small increase in their mass. This means that they have a lower density than normal which increases their buoyancy and helps them to float.


What are facts about buoyancy?

buoyancy has to deal with density, gravity, air, and water


How does the liquid density affects the buoyancy of objects placed in the liquid?

Yea


What property allows ice to float?

Due to hydrogen bonds, the density of water decreases as it freezes (decrease starts at 4oC). To see a full explanation of why ice floats in water, see the related question below.


How does density effect bouyancy?

Buoyancy is the ability to float, so if the density is high, it'll hold up something. (see? FLOATING. BUOYANCY.)


The contact force that acts on objects in a liquid or gas and allows objects to float is called density or buoyancy?

buoyant force