Lecture Demonstrations
Lecture Demonstrations

Fluids

Fluid Statics

Differential Pressure - Balloon w/ Bottle

APPARATUS:
LOCATION:
   Bottle w/balloon  G3


Place the balloon's opening over the bottle's mouth with the balloon inside the bottle. Remove the stopper at the other end. Blow up the balloon. While keeping the balloon inflated with your breath, replace the stopper tightly. The balloon will remain inflated. You can show the students the inside of the balloon through the open mouth. When you remove the stopper, the balloon deflates.

 

photo: Differential Pressure - Balloon w/ Bottle