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Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538

Physics Demo Manual

Demonstrations are cataloged according to PIRA Bibliography


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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 Thermal Properties Of Matter
 Thermometer Collection
 Liquid Crystal
 Absolute Zero
  video  - Thermal Expansion
 LN2 - Thermal Effects on Solids and Gases
 Heat And The First Law
 Change Of State
 Kinetic Theory
 Gas Law
 Entropy And The Second Law

Thermometer Collection


To demonstrate various kind of thermometers and physical principles allowing to measure temperature.


Our collection includes but is not limited to regular mercury or alcohol expansion thermometers, show and tell bimetallic strip thermostats w/ mercury switches, gas ball (using ideal gas law and pressure measurement to deduce the temperature), thermistors (resistance strongly dependent on temperature materials, usually w/ negative coefficient), bi-metal thermocouples (voltage difference dependent on temperature) etc.