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?
A) Glass A
B) Glass B
C) Glass C
D) All three have equal non-zero pressure at the bottom.
E) All three have zero pressure at the bottom.

Question

Quizplus · Accepted Answer

All three glasses have the same depth of water, and the pressure at the bottom of a liquid depends only on the depth and density of the liquid, not the shape of the container. Therefore, all three glasses have equal non-zero pressure at the bottom.

Consider Three Drinking Glasses