Activities

Students should collect a total of ten data points using the methods in steps 7 and 8. A graph of the data points will form on page 1.3 as students collect the data.

Students should use the Power Regression tool to calculate the best-fit equation for their data set. Note: Some data sets (including the sample data set shown here) may be better fit by a linear function (i.e., y = –x) than by an inverse power function.

Finally, students should plot the best-fit equation on the graph of the data on page 1.3. They should then answer questions 7 and 8. If you wish and time allows, you may have students repeat the data collection and analysis with different speakers or with a different frequency or intensity of sound.