character: Mr. Adams
topic: Introduction to Waves and Frequency
grade: 9
subject: Physics
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character: Ms. Johnson
topic: Understanding Sound Waves
grade: 9
subject: Physics
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character: Dr. Smith
topic: The Nature of Light and Frequency
grade: 9
subject: Physics
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character: Mrs. Blake
topic: Types of Waves: Mechanical vs. Electromagnetic
grade: 9
subject: Physics
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