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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

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

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

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

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

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

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

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

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

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

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

Spring and Rotating Wheel
An oscillating spring shows the y-direction motion of a point on a rotating wheel.

Real

Real

MPG

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

Sympathetic Tuning Forks
Sound emanating from one source can be used to excite another source with the same resonance.

Real

Real

MPG

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

Thermoelectric Fan
The temperature difference between the water and the liquid nitrogen is used to create electricity and run the fan.

Real

Real

MPG

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

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

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

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

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

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

Trash Can Throw

When an object is thrown, the center of mass of the object follows a parabolic path.

Real

Real

MPG

 

 

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