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INVESTIGATIONS
1
Equilibration in two water tanks
Description
Two cylindrical tanks are connected by a hose at the bottom. Water in one of the tanks flows into the second tank. Levels in both tanks are measured as functions of time.
Photographs
Movies
Two_Tanks_Water_1
Two_Tanks_Water_2
Data files
Two_Tanks_Water.xls
Models
Two_Tanks_Water.stm
Two_Tanks_Water_S.stm

2
Equilibration in two communicating balloons
Description
Two toy bolloons are connected by a pipe having a valve. The balloons are filled with air to different sizes. The connecting pipe has junctions that allow the air pressures to be measured in the two balloons. Data is taken as the valve between the balloons is opened.
Photographs
Balloons_01.jpg    Balloons_02.jpg  
Balloons_03.jpg    Balloons_04.jpg
Movies
Data files
Balloons_Equilibration.xls
Air_PV_Relation.xls
Models

3
Accounting for liquids in three tanks
Description
Three glass tanks are connected in series by hoses at the bottoms. The central tank has a smaller cross section. Initially, they are filled to different levels. As the water flows, levels have been measured as functions of time. Data can be used to investigate the balance of quantities of liquids.
Photographs
Movies
Three_Tanks_Water
Three_Tanks_Water_2
Data files
Balance_Volume.xls
Models

4
Pressure along a hydraulic circuit
Description
The pressure of water and other fluids is determined (1) inside different tanks (as a function of depth), and (2) in a setting where water flows out of a tank through a long horizontal pipe fitted at the bottom of the tank.
Photographs
Movies
Pressures
Data files
Pressures_Circuit.xls
Models
Pressures_Circuit_S.xls


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