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# Thermal Expansion Experiment, ScienceWorkshop

• Thermal Expansion of a Solid
• Coefficient of Linear Expansion

Thermal Expansion Experiment, ScienceWorkshop

EX-9923

## Experiment File

Thermal Expansion Experiment File
(English – 1.5 MB – zip)

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• Manuals

## Thermal Expansion Experiment, ScienceWorkshop

Steam is passed through a hollow, metal tube to increase the temperature of the tube. The side of the tube is pressed against a special adapter pin on the Rotary Motion Sensor. As the metal tube expands, the pin rotates the sensor and the change in length is accurately measured. In addition, the temperature of the tube is measured real-time using a thermistor directly connected to the tube. DataStudio is used to create graphs of temperature vs. time and change in length vs. time. A graph of change in length vs. change in temperature can also be created.

By using probeware to take measurements for the thermal expansion of a solid, students more clearly understand the relationship between change in temperature and change in length. The traditional method can lead to confusion, since students often use a multimeter to measure the resistance of a thermistor for their calculation of temperature change. The resistance of the thermistor actually decreases as its temperature increases, therefore students could mistakenly believe that change in length and change in temperature are inversely related.

This experiment can be run using DataStudio, available as a Download or upon request.

## Computer-Based Thermal Expansion (TD-8579A)

The change in rod length is measured by a rotary motion sensor with a special adapter pin that turns when in contact with the expanding rod.

## Thermistor Temperature Sensor (CI-6527A)

Designed to convert resistance measurements to temperature.

## Rotary Motion Sensor (CI-6538)

Allows students to measure angular velocity, acceleration, centripetal forces, and other full range of motion experiments.

## Steam Generator (TD-8556A)

Brings 3/4 of of a liter of water to boil in 10 minutes and provides continuous steam at up to 10 gram/min.

• Thermal Expansion Experiment Manual

## Order Guide

Qty.

### Required for Use with ScienceWorkshop Interfaces

ScienceWorkshop Interfaces include 750 and 500.