Why do smaller whistles play higher sounding notes? Basic science needed for a grade 4 project.
Asked by:Sophie


The lenghth of the whistle dictates how high or low the whistle sounds. This is sometimes refered to as the column of air. The longer the column the lower the sound. When you blow in the mouthpiece the air is split and some of your breath goes down the column of air in waves ,the waves flatten out the further they have to travel and this gives the lower sound on a longer whistle and higher sound on a shorter whistle. If you blow in a whistle with all holes covered you lengthen the column of air and as you open the holes from the bottom up you shorten the column thus giving you a higher sound. hope this helps,  Sudsieboy.