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SAI INTERNATIONAL SCHOOL
                                                          Class8
                                                     Lesson  Notes
                                                   Subject-Physics
                                                       CH-Sound
                                          Subtopic-Production of sound




               There are three categories of musical instruments as follows:

              Percussion Instrument.
              Stringed Instrument.
              Wind Instrument.
                     Stringed  instrument  is  a  musical instrument (as  a  violin,  guitar,)  sounded  by
                       plucking or striking or by drawing a bow across its tight stretched  strings.
                     Percussion instruments make sound by  a stretched membrane being hit.
                     A wind instrument is a musical instrument in which a column of air is set into
                       vibration
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