- 2C10. Flow Rate
- 2C10.10 Velocity Of Efflux, Torricelli’s Tank A tall tube of water has holes top, middle, and bottom. Compare the range of the water streams.
- 2C10.20 Pressure Drop Along a Line Open tubes along a drain pipe show pressure drop along a line.
- 2C10.30 Falling Stream of Water A water stream from a faucet narrows as it falls.
- 2C20. Bernoulli Force
- 2C20.20 Atomizer An atomizer made from a glass straw in a water filled cup.
- 2C20.26 Venturi Tubes Air is blown through a constricted tube and the pressure measured with a manometer.
- 2C20.30 Floating Ball A ball is suspended in an upward jet of air.
- 2C20.35 Funnel and Ball Air blowing out an inverted funnel will hold up a ball.
- 2C20.40 Lifting Plate A stream of air flowing radially between two plates will lift the bottom plate.
- 2C20.41 Lifting Plate – Spool Blow into a spool and lift a paper with a thumb tack through it inserted into the hole in the spool.
- 2C20.44 Coin in Cup Place a coin on the table a few inches in front of a coffee cup, give a puff, and the coin jumps into the cup.
- 2C20.45 Attracting Balls Blow air between two sheets of paper or two large balls and observe the attraction.
- 2C20.48 Bernoulli’s Ping-Pong Ball A Ping-Pong ball on a string brought near a falling stream of water will appear to be sucked into the stream.
- 2C20.50 Airplane Wing A balanced model airplane shows lift when a stream of air is directed onto it.
- 2C20.54 Rayleigh’s Disk A lightweight disk turns perpendicular to the air flow.
- 2C20.58 Dropping Wing Sections A folded index card is stable when dropped apex down.
- 2C20.60 Curve Ball Use a styrofoam or wiffle ball to throw a curve ball.
- 2C20.70 Bjerknes’ Tube Wrap three feet of cloth tape around the middle of a mailing tube and give a jerk to get a loop-the-loop motion.
- 2C20.80 Flettner Rotor Ship on Wheels An aluminum can spun with a battery operated motor is mounted on a platform with wheels.
- 2C20.95 Frisbee A frisbee is shown.
- 2C20.96 Flying Ring A flying ring is shown.
- 2C30. Viscosity
- 2C30.30 Temperature and Viscosity Tubes filled with motor oil and silicone oil are “inverted” at room temperature and after cooling with dry ice/alcohol.
- 2C30.50 Terminal Velocity in Water, Glycerin Drop balls in large test tubes, one filled with water, the other with glycerine and a third with corn syrup.
- 2C30.55 Terminal Velocity – Styrofoam Ball A 2″ dia. styrofoam ball reaches terminal velocity in 5 1/2 m.
- 2C30.65 Coffee Filters Terminal velocity of coffee filters.
- 2C40. Turbulent and Streamline Flow
- 2C40.60 Laminar and Turbulent Flow Shadow project rising warm air flowing around objects.
- 2C50. Vortices
- 2C50.15 Vortex Rings Tap smoke rings out of a garbage can with a rubber diaphragm on one end and a hole in the other.
- 2C50.20 Liquid Vortices A drop of inky water is allowed to form on a medicine dropper 1″ above a beaker of water.
- 2C50.21 Ring Vortices in Liquid A straw containing food coloring is dipped into a cup of water. Tap the straw to expel a drop of food coloring and produce a vortex ring.
- 2C50.30 Tornado Vortex Couple two soft drink bottles with the commercial tornado tube coupler.
- 2C60. Non Newtonian Fluids
- 2C60.30 Oobleck Add water to cornstarch until it is goo.
- 2C60.32 Corn Starch and Water on a Speaker Drive a speaker with a mixture of corn starch and water from about 6Hz to 45Hz for standing wave patterns.
- 2C60.40 Silly Putty
- 2C60.50 Fluids v.s. Liquids Sand flows when poured but remains in a conical pile.