Which glass has the greatest liquid pressure at the bottom? - ProProfs Discuss
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Which glass has the greatest liquid pressure at the bottom?
Consider three drinking glasses. All three have the same area base, and all three are filled to the same depth with water. Glass A is cylindrical. Glass B is wider at the top than at the bottom, and so holds more water than A. Glass C is narrower at the top than at the bottom, and so holds less water than A.

Which glass has the greatest liquid pressure at the bottom?<br/>
Consider three drinking glasses. All three have the same area base, and all three are filled to the same depth with water. Glass A is cylindrical. Glass B is wider at the top than at the bottom, and so holds more water than A. Glass C is narrower at the top than at the bottom, and so holds less water than A.

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A. Glass A
B. Glass B
C. Glass C
D. All Equal

This question is part of Unit 5 Concepts Quiz
Asked by Jkeslin, Last updated: Sep 10, 2018

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2 Answers

j. Goodman

J. GoodmanWeb Content Writer, San Antonio
Web Content Writer, San Antonio

Answered on Aug 29, 2018

The answer is B.) Glass B. Though all glasses have the same depth, Glass B holds the most water. This is in accordance to Archimedes Principle where Pressure is equal to the product of depth, the density of the object, and acceleration due to gravity. All three glasses have the same depth and acceleration due to gravity but they have different density. In getting the density, it is mass divided by volume.

So Glass B holding the most water, it has the greatest liquid pressure at the bottom. Imagine three human inverted pyramids where one group has more people to balance. It will give that person too much pressure to carry and balance those people on his shoulders just like Glass B in this situation.

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John Smith

John Smith

Answered on Mar 06, 2017

All Equal
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