10 more MCQs based only on the Characteristics of Sound for Class 9
(✔️ Pitch, Loudness, Quality; ❌ Human ear not included)
📘 Class 9 Science – Characteristics of Sound
🔹 MCQs (10 Questions)
Which characteristic of sound helps us distinguish between two sounds of the same pitch and loudness?
a) Pitch
b) Loudness
c) Quality
d) Speed
Loudness of a sound depends on its:
a) frequency
b) wavelength
c) amplitude
d) speed
Pitch of a sound is directly related to:
a) amplitude
b) frequency
c) loudness
d) time period
The quality or timbre of sound depends on:
a) amplitude only
b) frequency only
c) waveform
d) speed of sound
Which of the following sounds has the highest pitch?
a) Sound with frequency 100 Hz
b) Sound with frequency 500 Hz
c) Sound with frequency 1000 Hz
d) Sound with frequency 50 Hz
If the amplitude of a sound wave is doubled, its loudness will:
a) decrease
b) remain same
c) increase
d) become zero
Two sounds having same pitch and loudness but produced by different instruments differ in:
a) speed
b) frequency
c) quality
d) wavelength
Which characteristic of sound depends on the energy of the sound wave?
a) Pitch
b) Quality
c) Loudness
d) Frequency
A low-pitched sound has:
a) high frequency
b) low frequency
c) high amplitude
d) zero amplitude
The characteristic of sound which helps us identify a person by his/her voice is:
a) pitch
b) loudness
c) quality
d) amplitude
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