Simple Conceptual Question Regarding Pascal's Principle

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SUMMARY

The discussion centers on the interpretation of Pascal's Principle, specifically regarding the statement that an increase in pressure at one end of an oil-filled tube results in a uniform increase in force throughout the tube. Participants clarify that while pressure is transmitted undiminished in a fluid, force is dependent on the area over which it acts, as defined by the equation P=F/A. Thus, the statement is misleading; the increase in force is not necessarily uniform across all points in the tube unless the cross-sectional area is constant.

PREREQUISITES
  • Understanding of Pascal's Principle
  • Basic knowledge of fluid mechanics
  • Familiarity with the equation P=F/A
  • Concept of force and pressure relationship
NEXT STEPS
  • Study the implications of Pascal's Principle in hydraulic systems
  • Explore the relationship between pressure and force in varying cross-sectional areas
  • Investigate real-world applications of Pascal's Principle in engineering
  • Learn about fluid dynamics and its governing equations
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Students of physics, engineering professionals, and anyone interested in fluid mechanics and hydraulic systems will benefit from this discussion.

zak.hja
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Homework Statement


There's a conceptual question I've encountered in my reading, wherein we're supposed to determine the validity of a statement: "According to Pascal’s principle, if you increase the pressure enough so that the force at one end of an oil-filled tube increases by 10 N, the force will increase at all points in the tube by 10 N". The thing that's really bothering me is that this statement is supposedly true.

Homework Equations


P=F/A

The Attempt at a Solution


I know that Pascal's principle pertains to the applied pressure at any point within an enclosed fluid; the applied pressure is transmitted undiminished, throughout. It isn't necessarily true to say the force is the same, is it? As such, I find the statement to be highly problematic.
Or, does the fact that it's an oil-filled "tube" imply that the area is uniform throughout. Even then, is it correct to say the force increases at all points by 10N?

Many thanks! :oldsmile:
 
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If you assume, instead, that this statement is not true, does that resolve your doubts? That is, does assuming the statement not to be true line up with what you understand to be Pascal's Principle? Is pressure the same as force?
 

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