Videos By Alpha

Alphabetical Listing: S-T

1. S
   1. Shaving Cream in Vacuum
   2. Shive Wave Machine; wide section, single wave, free end
   3. Shive Wave Machine; wide section, single wave, fixed end
   4. Shive Wave Machine; narrow section, single wave, free end
   5. Shive Wave Machine; narrow section, single wave, fixed end
   6. Shive Wave Machine; all sections, single wave, free end
   7. Shive Wave Machine; two sections, single wave, free end
   8. Short a Capacitor
   9. Simultaneous Fall
   10. Siphon
   11. Slit Diffraction
   12. Spring and Rotating Wheel
   13. Steam Engine
   14. Sympathetic Tuning Forks
2. T
   1. Tablecloth Pull
   2. Thermoelectric Fan
   3. Thick Lens
   4. Toilet Paper
   5. Torque Wrench
   6. Total Internal Reflection; Aquarium
   7. Total Internal Reflection; Blackboard Optics
   8. Transformer
   9. Trash Can Throw

Physics Demo Videos

Alpha S	Discussion	Streaming	Download	Demo Page
Shaving Cream in Vacuum	The air pockets in shaving cream will expand in a vacuum. This makes the cream get bigger as the pressure inside the bell jar gets lower.	Real	Real MPG	Fluid Mechanics 2B32.30
Shive Wave Machine; wide section, single wave, free end	A wave propagates down the machine. At the free end it is reflected with the same amplitude.	Real	Real MPG	Waves 3B10.30
Shive Wave Machine; wide section, single wave, fixed end	A wave propagates down the machine. At the fixed end it is reflected with the same, but negative amplitude.	Real	Real MPG	Waves 3B10.30
Shive Wave Machine; narrow section, single wave, free end	A wave propagates down the machine. At the free end it is reflected with the same amplitude. The wave on this section moves faster than the wave on the wider section.	Real	Real MPG	Waves 3B10.30
Shive Wave Machine; narrow section, single wave, fixed end	A wave propagates down the machine. At the fixed end it is reflected with the same, but negative amplitude. The wave on this section moves faster than the wave on the wider section.	Real	Real MPG	Waves 3B10.30
Shive Wave Machine; all sections, single wave, free end	A wave propagates down the machine, going from a wide section to a narrow section via a connecting section. As the sections get narrower, the wave travels faster.	Real	Real MPG	Waves 3B10.30
Shive Wave Machine; two sections, single wave, free end	When a wave hits a density barrier, as represented by going from the narrow to the wide section without the connecting section, most of the wave is reflected at the barrier.	Real	Real MPG	Waves 3B10.30
Short a Capacitor	A large capacitor is charged through a resistor and then is shorted by touching the leads together. It gives a resounding CRACK and bright flash of light due to the quick loss of potential.	Real	Real MPG	E and M 5C30.20
Simultaneous Fall	One ball, having only a gravitational force, will fall straight down. The other ball, having gravity and a horizontal force, will follow a parabola. Watch it in slow motion.	Real	Real MPG	Mechanics 1D60.20
Siphon	An initial vacuum (provided by sucking) is enough to begin a flow of liquid from the high beaker to the low one.	Real	Real MPG	Fluid Mechanics 2B60.20
Slit Diffraction	Interference between light waves coming from different slits will produce interference patterns imposed on the single slit diffraction pattern. The video starts with single slit, then shows double and triple slits.	Real	Real MPG	Optics 6D20.10
Spring and Rotating Wheel	An oscillating spring shows the y-direction motion of a point on a rotating wheel.	Real	Real MPG	Waves 3A40.10
Steam Engine	A boiler produces steam which is used to drive a piston. The piston, in turn, drives a wheel which drives an electromagnet, producing electricity. The light bulb will light up when enough electricity is produced.	Real	Real MPG	Thermo 4F30.20
Sympathetic Tuning Forks	Sound emanating from one source can be used to excite another source with the same resonance.	Real	Real MPG	Waves 3B70.10
Alpha T	Discussion	Streaming	Download	Demo Page
Tablecloth Pull	The objects on the table tend to stay at rest due to their inertia.	Real	Real MPG	Mechanics 1F20.30
Thermoelectric Fan	The temperature difference between the water and the liquid nitrogen is used to create electricity and run the fan.	Real	Real MPG	Thermo 4F50.12
Thick Lens	A thick lens shows great distortion around the edges. Notice that is the object is inside the len's focal length, the image is upright, but outside the focal length, the image is upside down and much larger.	Real	Real MPG	Optics 6A65.31
Toilet Paper	If you pull the toilet paper slowly, you will over come the inertia of the roll and pull off lots of paper. However, if you pull quickly, you cannot overcome the inertia and the paper rips off.	Real	Real MPG	Mechanics 1F20.19
Torque Wrench	Extending the length of a wrench's handle allows for more torque, allowing a person to loosen a stubborn bolt.	Real	Real MPG	Mechanics 1J40.15
Total Internal Reflection; Aquarium	When light travels from a denser to a less dense medium, such as water to air, there is a critical angle of incidence beyond which the light will be total internally reflected at the internal surface of the water rather than refracted out into the air.	Real	Real MPG	Optics 6A44.20
Total Internal Reflection; Blackboard Optics	When light travels from a denser to a less dense medium, such as plastic to air, there is a critical angle of incidence beyond which the light will be total internally reflected at the internal surface of the plastic rather than refracted out into the air.	Real	Real MPG	Optics 6A44.10
Transformer	An AC current can not only be transmitted from one coil to another without wires, but due to the ratio of the coils, the voltage can be stepped up or down. An iron core is used to boost the coils' current in the demo.	Real	Real MPG	E and M 5K30.61
Trash Can Throw	When an object is thrown, the center of mass of the object follows a parabolic path.	Real	Real MPG