Buoyancy in Air-Filled & Vacuum Bottles: What's the Difference?

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Discussion Overview

The discussion centers around the differences in buoyancy between a bottle filled with air and a vacuum bottle. It explores the principles of buoyancy, the factors affecting it, and the implications of different contents within the bottles.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests that the density of air and the volume of the bottle can be used to determine the difference in mass, which relates to buoyancy.
  • Another participant states that the buoyancy force is dependent solely on the fluid displaced and not on the object causing the displacement.
  • A clarification is made regarding whether the buoyancy force being discussed pertains to the contents inside the bottle or the entire bottle itself when immersed in another fluid.
  • One participant questions the concept of buoyancy in a vacuum, asking what would cause buoyancy in that scenario.

Areas of Agreement / Disagreement

Participants express differing views on the nature of buoyancy in relation to the contents of the bottle and whether the discussion pertains to the bottle itself or objects inside it. The question of buoyancy in a vacuum introduces further uncertainty, indicating that multiple competing views remain.

Contextual Notes

The discussion does not resolve the assumptions about buoyancy in a vacuum or clarify the specific conditions under which buoyancy is being analyzed.

samir240
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Will there be any change in buoyancy in bottle full of air and vacuum bottle?
 
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Look up the density of air and, if you know the volume of the bottle, that will tell you the difference in mass - which will tell you the difference in ' buoyancy' (meaning how much the bottle can support). The upthrust will be the same in both cases, of course.
 
The buoyancy force depends only on the fluid that is displaced. It does not depend on what displaces it.

In your OP it is not clear if you are asking about the buoyancy force on something inside the bottle, or the buoyancy force on the whole bottle immersed in another fluid.
 
the bouyancy force on something inside the bottle
 
In a vacuum, what would cause buoyancy?
 

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