Thermal Expansion of Metal Rods , 4A30.58

Location:

• Cabinet: Thermodynamics Cabinet

• Bay: (A3)

• Shelf: #1

(attachment photo showing the fully set up demonstration)

Description:

This can also be called expansion rods.

Setup:

1. Install the gas tube from the burner which is already in the blue box with the gas source.
2. Make sure that you have the gas switch off and in the right pressure that you want before you turn it on.

Cautions, Warnings, or Safety Concerns:

1. Beware of the heated rods.
2. Wear the safety grove and glasses.

Demonstration:

• This demonstration show that different materials have different [http://en.wikipedia.org/wiki/Coefficient_of_thermal_expansion coefficient of thermal expansion]. Once you choose a rod and place it on the holder, turn on the gas source to heat the rod. You will see that the orange tip scale will move to the left at some amount of rate. Then choose other rod in place of the previous one and heat it. The orange tip will move to the left at different rate.

References:

1. [http://en.wikipedia.org/wiki/Coefficient_of_thermal_expansion Wikipedia]

[:ThermalProperties:Thermal Properties of Matter]

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