2C20.35 - Ball in Funnel


Set up photo. make sure demo is facing the class with tubing going toward the back of the table.
Set up photo. make sure demo is facing the class with tubing going toward the back of the table.



Code: 2C20.35


Demo Title: Ball in Funnel


Subject: Forces in Moving Fluids


Description:
A ball will stick in the apex of a funnel hooked to an air supply.


Procedure:

  • Show the students that the air blower is blowing air and not sucking air by putting some Styrofoam close to the blower funnel
  • now put a one of the balls very close the blower's hose for the ball to float
  • Explain to students bernoulli's equation and how a higher velocity corresponds to lower pressure and the movement of air from high to low pressure


    Video URL:


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