Build a Musical Band
Project Description
For this project we had to build instruments and make sure that each instrument could play all of the notes. As a group, we decided to build a flute, a pan flute, a ukulele, and a xylophone.
Justification:
Concepts:
amplitude- refers to the distance from the mid-point to the crest of a wave.
frequency- how often a vibration occurs
hertz- the unit of frequency
wavelength- distance from the top of the crest to the top of the next one.
period- the time required
wave- a wiggle in space and time
transverse wave- motion at right angles to the direction in which a wave travels.
longitudinal wave- the particles move along the direction of the eave rather than it at right angles.
inference (constructive)- wave’s increase in amplitude
inference (destructive)- the high part of one wave simply fills in the low part of another.
nodes- in a standing wave certain parts of the rope, called nodes, remain stationary.
antinodes- the position on a standing wave with the largest amplitudes.
velocity (wave speed)- wave speed=wavelength x frequency
Reflection:
I thought that my group worked very well together. We had a large group of 5, so we had to make sure that everyone was always on task and helping out in any way. During this unit I learned a lot about sound waves. Not only did I learn did I learn about sound waves, but I also learned how they are directly connected to the musical instruments that we were making. My group struggled with tuning the instruments properly and time management. The pan flute wasn't loud enough at first so we had to change the octave to make it louder. The flute was also soft and wasn't able to play many notes at first, but after playing around with it (adjusting the holes), it eventually became louder and was able to play the notes. The ukulele's strings would create enough tension to play at deep enough note with the smaller screws. We then decided to use the larger screws so that we could wrap the fishing line around it more times. We were then able to drill the screws in and create a lot more tension. Even with more tension, the ukulele wasn't very loud. To make it louder we changed the octave by using a pipe to cut the string exactly in half. All in all, my group was productive and worked well together.