The project Build a Band was to build a band. We were tasked to build 3 instruments.We decided to build a guitar a xylophone and a trumpet. We started with making blueprints then we began working on the trumpet because it was the easiest to build. The next one we started was the guitar because it was going to take a while to finish. Lastly we finished the guitar and made the chimes. The last part was to present the instruments and make sure they work we had to play a scale and explain how they work. The paragraphs below show how they work.
String Instruments: The way a guitar works is when you strum the strings it creates a wave depending on how tight our how long the string is that is the not you are going to get. For example, if you have a very short string and you play it will make a very high note and if you have a very long string then it will make a lower note.Our string instrument is more like a ukulele. It has four strings on a 65 centimeter long neck with a 8 by 8 inch box. It play the C4 to B5 scale
Chime Instruments: Chimes work when they are struck and they vibrate they create a wave inside of the chime itself. The width of the chime itself works out how the note will sound because if the chime is long the wave will be long. Our chimes are different sized metal pipes strung across a box with fishing line.The box is 56 cm by 34 cm. Our chimes play the G6 to G7 scale
Wind Instruments: With wind instruments you create a low pressure zone near your mouth, after that it makes a neutral pressure zone this is where the holes are so when you close a hole it shortens or lengthens the wave length. Lastly the bell on the end helps amplify the sound making the instrument louder. Our design is very simple it is a PVC pipe with holes at certain lengths to make different notes.
Terms and Definitions Frequency: How many waves pass a certain point in a certain unit of time. Calculated either using v=λf or f=1/T. Period: The amount of time between waves/vibrations. The period is inverse to the frequency. Calculated using T=1/f. Wavelength: The length of a wave from one point on the wave to the corresponding point on the next wave. Calculated using v=λf. Wave Speed: The velocity of a wave. Calculated using v=λf. Amplitude: Displacement from equilibrium to crest. Transverse Wave: A wave that goes up and down as it goes along. Light waves are transverse waves. Does not need a medium to travel through Longitudinal Wave: A wave that compresses and rarefies (expands) as it travels along. Sound waves are longitudinal waves. Does require a medium to travel through.
Reflection To be honest I didn't like this project very much it didn't interest me and getting the correct notes was very tedious. Our group did a good job doing the guitar and chimes but the trumpet looked and sounded sub-par. This was due to the fact that we got lazy and screwed off. That was the on thing we could get better at screwing off in class I need to put down the phone and stay on task if I do this the final products will be crisper and overall better. The thing we were best at was knowing what we had to get done that day. After this project I have improved in leadership and construction.