character: Ms. Lopez
topic: Understanding Sound Waves and Musical Intervals
grade: 9
subject: Physics
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character: Mr. Smith
topic: Introduction to Waves and Frequency
grade: 9
subject: Physics
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character: Dr. Nguyen
topic: The Physics of Sound: How It Travels
grade: 9
subject: Physics
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character: Ms. Patel
topic: Exploring Pitch and Tone in Music
grade: 9
subject: Physics
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