Physics Demo Manual

Demonstrations are cataloged according to PIRA Bibliography

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Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.

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video - Resistance Model

Purpose:

Provides students with a physical analogue to electron collisions with atoms in a conducting solid.

Procedure:

DEMO VIDEO DOWNLOAD w/ sound / 1920x1080 / 24.19Mb/s / 268MB size
DEMO VIDEO DOWNLOAD w/ sound / 854x480 / 5.69Mb/s / 63MB size

One side of the ramp is free of "atoms" and represents accelerating electrons in a vacuum. The other side represents a solid with randomly placed atoms. The electrons (BB's) are slowed due to collisions with the atoms (staples) and leave the ramp with less energy than the electrons on the other side.