Lab Report
Sound Waves
It's time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and
your name at the end of the file name (e.g., U3_ Lab_SoundWaves_Alice_Jones.doc).
Introduction
1. What was the purpose of the experiment?
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2. What were the independent, dependent, and control variables in your investigation? Consider what you
changed, what you observed, and what stayed the same when you used the virtual tool.
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Experimental Methods
3. What tools did you use to collect your data in the first part of the experiment?
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4. Describe the procedure that you followed to conduct the second part of the lab (designing an instrument).
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Data and Observations
5. Record your observations from the first part of the experiment in a data table.
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6. Create a graph that shows the relationship between the string length and the frequency of sound produced.
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Conclusions
7. What conclusions can you draw about the relationship between string length and frequency and other patterns
in the characteristics of sound waves, such as pitch and loudness? Write evidence-based claims to support
your statements.
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8. How did you design an instrument that could play three different frequencies using household items? Include a
sketch or picture of your design and explain how you applied what you learned in your design.
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