Class 9 Physics: Sound Wave Concepts Matching Quiz
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Questions and Answers

Match the following physics concepts with their descriptions:

Frequency = Number of vibrations per second Pitch = Perception of how high or low a sound is Amplitude = Magnitude of displacement from equilibrium Resonance = Increase in amplitude of vibration

Match the following sound wave characteristics with their properties:

Wavelength = Distance between two consecutive compressions or rarefactions Intensity = Amount of energy transmitted by a sound wave per unit area Quality = Characteristics that distinguish different types of musical instruments Doppler effect = Change in frequency of sound due to relative motion between source and observer

Match the following musical terms with their definitions:

Harmony = Simultaneous combination of different musical notes to produce a pleasing effect Melody = Sequence of notes that are perceived as a single entity Timbre = Tonal quality or color of a musical sound Rhythm = Pattern of sounds and silences in music

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