Physics
The sketches I to IV in figure below show sound waves, all formed in the same time interval.
Which diagram shows
(i) a note from a musical instrument,
(ii) a soft (or feeble) note,
(iii) a bass (or low frequency) note.
Answer
(i) Note from a musical instrument is shown by figure IV as the sketch has subsidiary notes and all musical instruments produce subsidiary notes.
(ii) Soft (or feeble) note is shown by figure I, as we can observe from the wave form that it has the lowest amplitude.
(iii) Bass (or low frequency) note is shown by Figure II, as we can observe from the wave form that it has the lowest frequency.
Related Questions
State the factor that determines the quality of the note.
Name the characteristic of sound affected due to a change in it's (i) amplitude, (ii) wave form, and (iii) frequency.
Figure below shows the wave patterns of three sounds A, B and C. Name the characteristic of sound which is same between (i) A and B, (ii) B and C, and (iii) C and A.
Name three characteristics of a musical sound.