Forces in Moving Fluids – 2C20.00

Bernoulli’s Tube – 2C20.10


  • Blow across the top of the transparent vertical tube with Styrofoam plug.
  • Observe how the Styrofoam plug rises demonstrating how the Bernoulli effect causes the pressure in moving air to become less than atmospheric.

Location: Jacobs B12 – Shelf 286

Wind Bags – 2C20.22


  • Blow into a long tubular plastic bag known as a “Wind Bag.”
  • If the bag is placed right over the mouth, it will barely inflate when blown into.
  • If the bag is held a few inches away from the mouth and blown into, it will inflate a much greater amount, as air in the region is pulled into the stream of air entering the bag.

Location: Jacobs B122 – Shelf 280

Bernoulli’s Funny Car – 2C20.35


  • Demonstrate Bernoulli’s principle by supporting a Styrofoam ball in a stream air.
  • Put Styrofoam ball on smokestack.
  • Move switch to GO position.

Location: Jacobs B122 – Shelf 281

Singing Boogle Tube – 2C20.36


  • Hold at one end and swing the tube to hear the not. Adjust the speed of the tube to obtain higher or lower pitch.

Location: Jacobs B122 – Shelf 275