Amplitude of sound
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Define amplitude, frequency and time period of vibration.
When the amplitude of vibration is large, the sound produced is
Loud
Feeble
High pitched
Low pitched
Loudness of a sound is proportional to the square of the amplitude of the vibration producing the sound. Explain
The amplitude of a sound wave determines its ___.
loudness
wavelength
frequency
pitch
- speed
- pitch
- loudness
- quality
If a guitar string is pulled strongly, its amplitude of vibration ___(i)___ and the note heard is ___(ii)___, If it is pulled lightly, its amplitude of vibration ___(iii)___ and the note heard is ___(iv)___.
- (i)-decreases, (ii)-softer, (iii)-increases, (iv)-louder
- (i)-increases, (ii)-louder, (iii)-decreases, (iv)-softer
- (i)-increases, (ii)-softer, (iii)-decreases, (iv)-louder
- (i)-decreases, (ii)-louder, (iii)-increases, (iv)-softer
why waves transfer energy but not matter
Out of two, which one would make a higher pitch and why?
1) A post card , rubbed slowly against a comb?
2) A sandpaper , rubbed rapidly against a comb?
(i) The bottle with the less air in it gives the note of higher pitch.
(ii) The shorter the air column, the higher the pitch of the note produced.
- Both (i) and (ii) are correct and (ii) is the correct explanation of (i).
- Only (i) is correct.
- Both (i) and (ii) are correct but (ii) is not the correct explanation of (i).
- Only (ii) is correct.
- velocity
- amplitude
- frequency
- wavelength
- translatory motion
- oscillatory motion
- rectilinear motion
- circular motion
- Loudness
- Pitch
- Inverse of frequency
- True
- False
frequency
pitch
amplitude
vibration
- True
- False
which characteristics of a sound wave determine its loudness . how is the loudness related to this characteristics of the wave
The amplitude of a sound wave determines its ___.
pitch
loudness
wavelength
frequency
The ____ of a sound wave is expressed in hertz (Hz).
frequency
amplitude
- wavelength
- time period
frequency
pitch
amplitude
vibration
Following is a diagram based question
which of these sounds will be louder (a) or (b)
- sound will be louder but the pitch will be the same.
- sound will be louder and the pitch will also be higher.
- sound will be louder but pitch will be lower.
- both loudness and pitch will remain unaffected.