character: Physics Teacher
topic: Sound Waves and Their Properties
grade: 11
subject: Physics
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character: Science Explorer
topic: Understanding Frequency and Amplitude
grade: 11
subject: Physics
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character: Wave Specialist
topic: Reflection and Refraction of Sound Waves
grade: 11
subject: Physics
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character: Acoustics Researcher
topic: Doppler Effect and Sound Waves
grade: 11
subject: Physics
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