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Videos By Alpha


 

 

 

Alphabetical Listing: E-F

  1. E
    1. Elastic Collisions, equal mass
    2. Elastic Collisions, B/s mass
    3. Elastic Collisions, s/B mass
    4. Electric Motor
    5. Electroscope
    6. Electrostatic Balloon
    7. Electrostatic Pom Pom
    8. Electrostatic Pith Balls
    9. Electrostatic Ruler
    10. Electrostatic Yard Stick
    11. Exploding Carts, equal mass
    12. Exploding Carts, unequal mass
  2. F
    1. Faraday's Law
    2. Feeble-minded Disk
    3. Fiber Optics; Cable
    4. Fiber Optics; Lucite Curl
    5. Flat Mirror; Blackboard Optics
    6. Fletner Rotator
    7. Floating Ping Pong Ball
    8. Fluorescent Bulb in Mag Field
    9. Fourteen-Hook Bar
    10. Fuse Wire

 

 

Physics Demo Videos

Alpha E

Discussion
Streaming
Download
Demo Page
Elastic Collisions, equal mass
One cart is at rest when another cart of equal mass hits it. The momentum of the moving cart is transferred to the cart at rest.

Real

Real

MPG

Elastic Collisions, B/s mass
One cart is at rest when another cart of higher mass hits it. The momentum of the carts are transferred, giving the smaller massed cart a larger velocity.

Real

Real

MPG

Elastic Collisions, s/B mass
One cart is at rest when another cart of lower mass hits it. The momentum of the carts are transferred, giving the larger massed cart a smaller velocity.

Real

Real

MPG

Electric Motor
Repelling magnetic fields cause this motor to turn.

Real

Real

MPG

Electroscope
As the charged rod is brought close to the knob, opposite charges are attracted by it into the knob. This leaves the post and silver leaf with the same charge. Thus, the repel each other and the leaf moves out.

Real

Real

MPG

Electrostatic Balloon
A charged balloon will stick to a wall.

Real

Real

MPG

Electrostatic Pom Pom
In the presence of a charged rod, a tissue pom pom will puff due to the repulsion of the ends.

Real

Real

MPG

 

Electrostatic Pith Balls
Pith balls can be attracted to the rod or can be made to repel each other.

Real

Real

MPG

 

Electrostatic Ruler
The force between the two charges can be used to turn the ruler.

Real

Real

MPG

Electrostatic Yard Stick
The force between the two charges can be used to turn the yard (or meter) stick.

Real

Real

MPG

Exploding Carts, equal mass
Because these carts are of equal mass, they will have the same velocities and momentums after release.

Real

Real

MPG

Exploding Carts, unequal mass
Because these carts are NOT of equal mass, they will NOT have the same velocities after release. Instead, their velocities are inversely proportional to their mass; i.e. the bigger mass will have the smaller velocity. Their momentums will still be equal.

Real

Real

MPG

Alpha F

Discussion
Streaming
Download
Demo Page
Faraday's Law
A changing magnetic field will induced a changing current in the coil.

Real

Real

MPG

Feeble-minded Disk
The center of mass of the disk is not in the center as you might expect. Thus, placing the center of mass off center can create the torque need to roll the disk uphill.

Real

Real

MPG

Fiber Optics; Cable
Fiber Optics work due to total internal reflection. A cable can even be tied in a knot and the light will still be emitted by the other end.

Real

Real

MPG

Fiber Optics; Lucite Curl
Fiber Optics work due to total internal reflection. A curl made of Lucite will still emit light at the other end.

Real

Real

MPG

Flat Mirror; Blackboard Optics
On a flat mirror, the angle of incidence is equal to the angle of reflection.

Real

Real

MPG

Fletner Rotator
A moving, spinning spool will curve due to the addition or subtraction of pressure effects. The side that is spinning in the direction of the motion will have a higher pressure than the side spinning away, thus the spool will curve to the low pressure side.

Real

Real

MPG

Floating Ping Pong Ball
A ping pong ball can be "floated" on a stream of air. The air rushing around the ball creates a pressure low enough to lift and support the ball. Even when the ball is not exactly over the air source! As long as the low pressure spot is under the center of mass of the ball, it will stay "afloat".

Real

Real

MPG

Fluorescent Bulb in Mag Field
The high magnetic field sets up a corresponding electric field in the bulb, exciting the gas therein and lighting the bulb (light saber).

Real

Real

MPG

Fourteen-Hook Bar

Different combinations of mass and distance are required to balance the torques on the stick.

Real

Real

MPG

Fuse Wire
A piece of fuse wire is attached between two posts, completing the circuit. Light bulbs, in parallel, are added to the circuit by screwing them into their sockets. When the current load is too much for the wire, the fuse wire will burn and break, "blowing" the fuse and protecting the circuit.

Real

Real

MPG

 

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