Pasco TD-8513 Heat Conduction Apparatus User Manual download pdf (Page 12)

Heat Conduction Apparatus Experiment #2: Angstrom’s Method

2. Repeat the calculations for the data runs taken with 40-second and 50-second tri-

angle waves.

Save the three data runs recorded with 50-second triangle wave for the next part.

3. Does k appear to depend on the period of the wave?

4. Calculate the average k (including uncertainty) for all data runs and compare

your answer to the accepted value of k for aluminum.

B. Brass

Record two more data runs with a 50-second triangle wave so that you have a total of

five. Repeat the analysis from part A for the wide brass bar and narrow brass bar sep-

erately. Does the bar’s cross-sectional area appear to affect the value of k?

C. Stainless Steel

Record five data runs with a 100-second triangle wave. Repeat the analysis for the

stainless steel bar.

Compare the thermal conductivities of the three materials that you tested.

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Pasco TD-8513 Heat Conduction Apparatus User Manual Page 12