Characteristics of a Sound Wave MCQs
Practice Characteristics of a Sound Wave multiple-choice questions from Sound Waves: Characteristics and Applications (Class 9 Science) - tap an answer for instant feedback and a step-by-step solution. Practice the full set free on the RankByte app.
Characteristics of a Sound WaveQuiz - Solve & Score
Q1. The pitch we hear is most directly linked to which physical property of the wave?
- A.its frequency
- B.its amplitude
- C.its energy only
- D.the distance to the source
Answer: A. its frequency
Q2. Which property of a sound wave decides its pitch?
- A.its frequency
- B.its amplitude
- C.its speed
- D.the listener's distance
Answer: A. its frequency
NCERT fact (physics, chapter 'Sound Waves: Characteristics and Applications'): Apply the wave equation v = f * lambda to the given sound wave; substitute the supplied parameters into this relation => the unknown quantity is isolated and evaluated; therefore the listed value = its frequency. Why option A fits - Correct. Distractor analysis: option B) 'its amplitude' is incorrect: Amplitude sets loudness, not pitch; option C) 'its speed' doesn't hold - Speed depends on the medium, not the perceived pitch. Final answer - A) its frequency.
Q3. Which set correctly pairs the perceived property with its physical cause?
- A.loudness-amplitude, pitch-frequency, quality-waveform
- B.loudness-frequency, pitch-amplitude
- C.pitch-waveform, quality-frequency
- D.loudness-speed, pitch-distance
Answer: A. loudness-amplitude, pitch-frequency, quality-waveform
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