character: Dr. Soundwave
topic: Understanding Sound Wave Interactions
grade: 9
subject: Physics
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character: Professor Echo
topic: The Basics of Sound Waves
grade: 9
subject: Physics
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character: Captain Frequency
topic: How Sound Waves Travel Through Different Mediums
grade: 9
subject: Physics
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character: Lady Vibration
topic: The Effects of Frequency on Sound Perception
grade: 9
subject: Physics
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