Friday, 19 July 2013 12:46

## F1-06 WATER SEEKS ITS OWN LEVEL

• ID Code: F1-06
• Purpose: Shows that pressure is dependent on depth, not shape of container
• Description:

This set of conjoined glass tubes is filled with green-dyed water. The water level in the four different tubes is the same even though the volumes and shapes of the tubes are very different.

##### Engagement Suggestion
• For advanced students, consider tilting the tubes slightly, then plugging them with corks so that the different amounts of trapped air cause the water to be at different levels. Challenge students to analyze why this changes the results, then remove the corks to show what happens.
##### Background

This illustrates that the pressure in an open container of liquid is dependent only on the depth, not the shape or area.

• Availability: Available
• #### F1-01 FLUID PRESSURE VS. DEPTH

Demonstrates that fluid pressure increases linearly with depth and is isotropic. Read More
• #### F1-02: FLUID PRESSURE VS DEPTH - ANEROID GAUGE

Show water pressure versus depth with an aneroid gauge. Read More
• #### F1-03: PASCAL'S VASES

Show water pressure versus depth with an aneroid gauge. Read More
• #### F1-04: EQUILIBRIUM TUBES

Demonstrate that pressure is transmitted equally throughout a fluid. Read More
• #### F1-05: DOES WATER SEEK ITS OWN LEVEL?

A trick to challenge the students. Read More
• #### F1-06 WATER SEEKS ITS OWN LEVEL

Demonstrate that pressure is dependent only on depth, and not on the shape of the container. Read More
• #### F1-11: HYDRAULIC PRESS

Demonstrate dramatically Pascal's Law and the large forces attainable using hydraulic systems. Read More
• #### F1-12: PASCAL'S LAW - COILED TUBE PARADOX

Illustrate Pascal's law in a dramatic way. Read More
• #### F1-13: CONSTANT WATER PRESSURE

Demonstrate a mechanism which produces a constant water pressure. Read More
• #### F1-14: PISTON DIAMETER VS TRAVEL - WORKING MODEL

Show that with an incompressible fluid the bigger piston moves more slowly than the smaller piston. Read More
• #### F1-15: PRESSURE GLOBE

Demonstrate principles of air pressure. Read More
• #### F1-21: LIPLESS STRAW

Demonstrate the role of atmospheric pressure in the operation of a drinking straw. Read More
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