character: Mr. Anderson
topic: Understanding Sound Waves and Frequency
grade: 9
subject: Physics
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character: Ms. Thompson
topic: The Nature of Sound: Basics and Beyond
grade: 9
subject: Physics
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character: Dr. Williams
topic: Exploring Wave Properties in Physics
grade: 9
subject: Physics
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character: Mr. Lee
topic: The Relationship Between Frequency and Pitch in Sound
grade: 9
subject: Physics
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