What is the relationship between density and buoyancy in a liquid?

AI Thread Summary
The discussion centers on the relationship between density and buoyancy in liquids, particularly in the context of a plumbing test question. It emphasizes that buoyancy is directly proportional to the density of the fluid, meaning that a greater density results in a greater buoyant force. The formula for buoyant force is highlighted as being dependent on the fluid's density, the volume of displaced fluid, and gravity. Participants express confusion over the test question, debating the relevance of viscosity and clarifying that buoyancy relates to the density of the surrounding fluid. Overall, the consensus is that increased density leads to increased buoyancy.
nickberg
Messages
4
Reaction score
0
I had a question on a test this past friday that left me absolutely scratching my head.


"The greater the density of a liquid the greater its ...?"

1 volume
2 area
3 viscosity
4 buoyancy

While viscosity seems like the best option, this question was for a piping/plumbing test, and viscosity was never ever mentioned in class or in the texts. I found it unlikely that they would assume people would go out and do random research on the topic, especially for a trade school. Can anybody give me their opinions with short explanation? Thank you
 
Physics news on Phys.org
boyancy is proportional to density, the greater the density of a fluid, the greater the boyant force

Boyant force= density of fluid X volume of displaced fluid X gravity
 
I have virtually no education, but I can pretty much rule out 3 of the possible answers just by common sense. #3, viscosity ,would appear to me to be the correct answer. I don't know the engineering approach to why it would be applicable, but I can think of a couple of reasons why the other 3 are wrong.
 
Last edited:
RTW, it appears that I misinterpreted the original post. I thought that he was asking about the relative buoyant force between the 'mystery material' and another liquid. Sorry.
 
I understand how buoyancy and density correlate to each other, but that is relative to the density of the substance it is in correct? In the context of that question (ie: not saying if its in water or in another substance at all) it is only stating that increased density also increases___? So does this mean that simply that the more dense an object is, the more buoyant it will be? Sorry if this is easy, I only have 1 week's worth of this material under my belt.
 
Thread 'Is there a white hole inside every black hole?'
This is what I am thinking. How much feasible is it? There is a white hole inside every black hole The white hole spits mass/energy out continuously The mass/energy that is spit out of a white hole drops back into it eventually. This is because of extreme space time curvature around the white hole Ironically this extreme space time curvature of the space around a white hole is caused by the huge mass/energy packed in the white hole Because of continuously spitting mass/energy which keeps...
Back
Top