Material: guitar or ukulele Procedures: Pluck the strings of the guitar or ukulele. Note how the strings move. Do they produce sound? Questions: How do the strings of the ukulele or guitar move? How can you make objects produce sound? Conclusion: How is sound produced?
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Answer:
A sound wave is produced by a vibrating object. As a guitar string vibrates, it sets surrounding air molecules into vibrational motion. The frequency at which these air molecules vibrate is equal to the frequency of vibration of the guitar string.