P.R.O.M.I.S.E.

This project was about raising awareness of music in Schools. This was also about learning the physics of how sound works. We also learned how to build a piano, and how hard it was to build the hammers of piano.


The construction of a piano is made of wood that is picked for sturdiness; the rim is made of Beech or maple wood. This is so that more sound stays in the sound board when the notes are played. Pianos produce sound using wire that is made of high quality steel; the bass strings are wrapped in copper wire, the treble strings are doubled and the higher octaves are even tripled, this will help them produce the same volume of sound. The stronger the steel plate, that holds the strings tension, the more sound will be created. A string is fixed on both ends and each string is a different length, also when a hammer with wool on it, hits the string in makes a soothing sound. The hammer is connected by the keys that make a corresponding note. The lengths of the strings change the frequency, the longer the string the lower the frequency or note. A shorter string length creates a higher note. The tension of the string can also change the note, the more the tension the higher the frequency as well. The sound is produced by two nodes and an anti node, which vibrates the air.