character: Mr. Lee
topic: Temperature Effects on Wave Propagation
grade: 9
subject: Physics
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character: Ms. Smith
topic: Sound Waves and Temperature
grade: 9
subject: Physics
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character: Dr. Wong
topic: The Influence of Medium on Wave Speed
grade: 9
subject: Physics
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character: Mr. Turner
topic: Heat and Light Propagation in Different Materials
grade: 9
subject: Physics
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