character: Mr. Johnson
topic: Exploring Wave Properties and Applications in Daily Life
grade: 9
subject: Physics
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character: Ms. Smith
topic: Understanding Sound Waves and Their Impact on Music
grade: 9
subject: Physics
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character: Dr. Lee
topic: Applications of Light Waves in Technology
grade: 9
subject: Physics
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character: Mrs. Carter
topic: The Role of Waves in Communication Technologies
grade: 9
subject: Physics
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