Videos By Alpha

Alphabetical Listing: A-B

1. A
   1. Air Over Paper
   2. AC and DC Generator
   3. Aquarium Optics
   4. Atomic Spectra
   5. Attracting Coils
2. B
   1. Beats; differential tuning forks
   2. Bed of Nails
   3. Bernoulli Envelope
   4. Bicycle Wheel and Rotating Platform
   5. Bicycle Wheel and Rotating Platform 2
   6. Bicycle Wheel Gyroscope
   7. Bi-Metalic Strip
   8. Boomerang (outside)
   9. Boomerang (inside)

Physics Demo Videos

Alpha A	Discussion	Streaming	Download	Demo Page
Air Over Paper	A stream of air over paper creates a low pressure zone which lifts the paper.	Real	Real MPG	Fluid Mechanics 2C20.51
AC and DC Generator	This motor can be set up to produce both AC and DC currents.	Real	Real MPG	E and M 5K40.40
Aquarium Optics	An aquarium of dyed water shows how a convex lens produces a magnified image.	Real	Real MPG	Optics 6A60.49
Atomic Spectra	A diffraction grating can be used to break up light emitted by an atom into its constituent frequencies.	Real	Real MPG	Optics 6D20.20
Attracting Coils	Two coils can be wired so that their magnetic field attract each other when the current is turned on.	Real	Real MPG	E and M 5H40.15
Alpha B	Discussion	Streaming	Download	Demo Page
Beats; differential tuning forks	When we hear two tones close in frequency, we experience a vibrato or beat that has the same frequency as the difference of the two tones. For example, if one tuning fork is at 256 Hz and one is at 257 Hz, then we will hear a beat with a frequency of 1 Hz.	Real	Real MPG	Waves 3B60.10
Bed of Nails	When the pressure is distributed over many nails, each individual nail exerts too small an amount to pop the balloon. When a less dense population of nails is used, each individual nail exerts more pressure and the balloon pops.	Real	Real MPG	Mechanics 1K30.20
Bernoulli Envelope	Blowing air over the open end of an envelope causes the two sides to separate due to the lower pressure of the flowing air.	Real	Real MPG
Bicycle Wheel and Rotating Platform	The force created by a turning wheel will cause the person on the platform to turn in order to conserve angular momentum. In this case, the wheel begins vertically and the person will rotate left or right depending on the tilt of the wheel.	Real	Real MPG	Mechanics 1Q40.30
Bicycle Wheel and Rotating Platform 2	The force created by a turning wheel will cause the person on the platform to turn in order to conserve angular momentum. In this case, the wheel begins horizontally. Turning it vertical makes the person spin, turning it completely over makes the person's speed double.	Real	Real MPG	Mechanics 1Q40.30
Bicycle Wheel Gyroscope	Outside torques produced by gravity and friction cause the wheel to be vertical and spin about the axle in order to conserve angular momentum. This is why it's easier to stay on a moving unicycle or bicycle than a stationary one.	Real	Real MPG	Mechanics 1Q50.20
Bi-Metallic Strip	Different metals expand at different rates when heated. One side of the strip is one metal and the other side is another. The higher expansion rate of the longer side causes the strip to bend when heated.	Real	Real MPG	Thermo 4A30.10
Boomerang (outside)	A boomerang will lift and curve when thrown. The lift comes from the shape of the arms and the curve comes from the spinning motion.	Real	Real MPG	Fluid Mechanics 2C20.55
Boomerang (inside)	A boomerang will lift and curve when thrown. The lift comes from the shape of the arms and the curve comes from the spinning motion.	Real	Real MPG	Fluid Mechanics 2C20.55