character: Ms. Carter
topic: Understanding Waves: Sound and Light Transmission
grade: 9
subject: Physics
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character: Mr. Johnson
topic: Properties of Waves: Reflection and Refraction
grade: 9
subject: Physics
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character: Ms. Lee
topic: The Electromagnetic Spectrum and Its Applications
grade: 9
subject: Physics
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character: Dr. Smith
topic: Sound Waves: Frequency, Wavelength, and Amplitude
grade: 9
subject: Physics
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