Wave Project Essay
Title
Sound Waves
Introduction
Our project was to try and find out how different floor/wall material in a room affect the acoustic sound. We decided to try it out in Dan Thurbers room, since his room has carpet. We measured his room and we got black sheets to hang up along the walls. Our plan was to use a radio to produce the sound, and we used a decibel meter to measure the sound in the room. We tried putting the sheets in a square and put one extra sheet up each time we tested our experiment. Our goal was to find out if the floor/wall material in a room affect the acoustics in a room.
Question and Hypothesis
Our question was if curtains in a room affect the decibel levels of a sound.
Our hypothesis was that if we have curtains up in a room then the decibel levels will be lower because part of the wave will be absorbed by the curtains.
Methods & Materials
For this experiment we used a 24ft by 26ft 9in classroom that was all set up normally, 3 sheets, a deciblemeter, and an iPhone attached to a speaker. We used a piano note coming from the iPhone and measured the decibels in each of the four corners with one sheet, two, then finally three. One thing that I feel we should have done is marked the floor so that the person measuring the decibels was standing in the exact same place every time they measured, so that that variable was better controlled
Results
We measured the decibels a few feet out from each of the four corners in the room, first with the room just the same as usual, then with one sheet hung on the wall, then two, then three, and finally four. We measured them all twice, and didn’t really notice any change.
First Time
Second Time
One Sheet
Corner 1
76
78
Corner 2
78
78
Corner 3
72
78
Corner 4
80
75
Two Sheets
Corner 1
78
79
Corner 2
80
78
Corner 3
74
78
Corner 4
71
79
Three Sheets
Corner 1
78
78
Corner 2
75
75
Corner 3
75
75
Corner 4
79
79
Discussion
The experiment was done with the purpose of figuring out if lots of fabric hanging in a rom will affect the acoustics. The data we collected in our experiment was the decibel level in the room while a sound was being played in certain areas of the room, this data was supposed to show that when more curtains were added to the room the decibel level would change accordingly. We figured out that the decibel level doesn't change that much, it changed slightly during the course of the experiment but that may have been because of slight changes in where the decibel meter was. In the first spot with no curtains the level was 78 and it stayed the same no matter how many curtains were added on the walls. A average number of 78 was the constant no matter what spot in the room or how many curtains so we concluded that the curtains did not have an affect on the acoustics of the room. The curtains might not have affected the acoustics because they were not thick enough or that were not place strategically enough in the room therefore not affecting the decibel level in the room.
Our results are very important to our experiment, without them would have no conclusion as to whether the curtains affected the acoustics of the room. we are not as confident as we could be in the results of our experiment. There were some variables in our experiment that we did not control that we possibly could have, such as furniture, the places we measured from and where in the room the curtains were place could have been better.
Last wwe could do another experiment like the one we have done except take furniture out of the room (even if this could prove t be difficult) and be more precise in where we measured from in the room. We now wonder if the furniture in the room affects the acoustics also in we only put the certain things in the corners of the room like they did in the video that we watched before we did our experiment. To test this we would take those variables and test them separately in a room and see how it goes.
Abstract
At the end of our project we came to the conclusion that hanging sheets up against a wall in a room with carpet. In the results it shows our results with one sheet up, then two sheets up, then with three sheets up. We used a radio to and black sheets to test our experiment.
To test our experiment we connected the radio to my phone and I played the sound of middle C on a piano constantly. After doing the first four tests, we decided that instead of putting up more sheets we would take them down one by one. So we could get more of a variety of data. In the end our hypothesis was correct, the sheets absorbed the sound and the acoustics got lower every time we put up a sheet.
Bibliography
http://www.gikacoustics.com/the-basics-bass-traps-diffusion-panels/
Sound Waves
Introduction
Our project was to try and find out how different floor/wall material in a room affect the acoustic sound. We decided to try it out in Dan Thurbers room, since his room has carpet. We measured his room and we got black sheets to hang up along the walls. Our plan was to use a radio to produce the sound, and we used a decibel meter to measure the sound in the room. We tried putting the sheets in a square and put one extra sheet up each time we tested our experiment. Our goal was to find out if the floor/wall material in a room affect the acoustics in a room.
Question and Hypothesis
Our question was if curtains in a room affect the decibel levels of a sound.
Our hypothesis was that if we have curtains up in a room then the decibel levels will be lower because part of the wave will be absorbed by the curtains.
Methods & Materials
For this experiment we used a 24ft by 26ft 9in classroom that was all set up normally, 3 sheets, a deciblemeter, and an iPhone attached to a speaker. We used a piano note coming from the iPhone and measured the decibels in each of the four corners with one sheet, two, then finally three. One thing that I feel we should have done is marked the floor so that the person measuring the decibels was standing in the exact same place every time they measured, so that that variable was better controlled
Results
We measured the decibels a few feet out from each of the four corners in the room, first with the room just the same as usual, then with one sheet hung on the wall, then two, then three, and finally four. We measured them all twice, and didn’t really notice any change.
First Time
Second Time
One Sheet
Corner 1
76
78
Corner 2
78
78
Corner 3
72
78
Corner 4
80
75
Two Sheets
Corner 1
78
79
Corner 2
80
78
Corner 3
74
78
Corner 4
71
79
Three Sheets
Corner 1
78
78
Corner 2
75
75
Corner 3
75
75
Corner 4
79
79
Discussion
The experiment was done with the purpose of figuring out if lots of fabric hanging in a rom will affect the acoustics. The data we collected in our experiment was the decibel level in the room while a sound was being played in certain areas of the room, this data was supposed to show that when more curtains were added to the room the decibel level would change accordingly. We figured out that the decibel level doesn't change that much, it changed slightly during the course of the experiment but that may have been because of slight changes in where the decibel meter was. In the first spot with no curtains the level was 78 and it stayed the same no matter how many curtains were added on the walls. A average number of 78 was the constant no matter what spot in the room or how many curtains so we concluded that the curtains did not have an affect on the acoustics of the room. The curtains might not have affected the acoustics because they were not thick enough or that were not place strategically enough in the room therefore not affecting the decibel level in the room.
Our results are very important to our experiment, without them would have no conclusion as to whether the curtains affected the acoustics of the room. we are not as confident as we could be in the results of our experiment. There were some variables in our experiment that we did not control that we possibly could have, such as furniture, the places we measured from and where in the room the curtains were place could have been better.
Last wwe could do another experiment like the one we have done except take furniture out of the room (even if this could prove t be difficult) and be more precise in where we measured from in the room. We now wonder if the furniture in the room affects the acoustics also in we only put the certain things in the corners of the room like they did in the video that we watched before we did our experiment. To test this we would take those variables and test them separately in a room and see how it goes.
Abstract
At the end of our project we came to the conclusion that hanging sheets up against a wall in a room with carpet. In the results it shows our results with one sheet up, then two sheets up, then with three sheets up. We used a radio to and black sheets to test our experiment.
To test our experiment we connected the radio to my phone and I played the sound of middle C on a piano constantly. After doing the first four tests, we decided that instead of putting up more sheets we would take them down one by one. So we could get more of a variety of data. In the end our hypothesis was correct, the sheets absorbed the sound and the acoustics got lower every time we put up a sheet.
Bibliography
http://www.gikacoustics.com/the-basics-bass-traps-diffusion-panels/
Our first Project
Description: In this project we had to work very hard to figure out how we where going to answer this question. luckily our group can work together and get things done when needed. After working for a couple of days it became easier and easier to answer the question.
Reflection: Doing this project has definitely helped me to improve my understanding of how technology affects the human mind, and my technology skills have improved since I started doing this project.
Rube Goldberg
Project Description: For this project we had to put a series of simple machines together to create one final action, our final action is dipping one carrot into a thing of ranch. when we finally got it all put together, something went wrong every time whether a marble kept falling off the track or a car wouldn't move. But after 3 weeks of working together we finally got our Rube Goldberg to work, and in the end we get a wonderful snack.
Andrew, Baylee, Sierra
Skills we learned:
Some skills that we learned during this project were how to manage a group project, and some basic construction, mainly involving plastic tracks and hot glue. When we first got together we didn’t all know each other very well and we didn’t know how to work with each other. This seemed to last throughout most of the project, but going through into other group activities we will almost certainly be better at task delegation and responsibility.
Our rube is pretty ghetto, most of the things are improvised and glued or taped in a way that makes them work. Part of our marble track is a paint stir stick, and most of the things that are supposed to stay until hit with another part of the rube, are held in place by dry hot glue. Through this project we learned improvisation and that sometimes all you need to make something work is a thumbtack and some hot glue.
What steps were most challenging to make work?
At first it was the marbles on the first and second track they kept falling off, we tried gluing many different tracks for the marble, but in the end we put a little wall to prevent the marble from falling off the track. The other step that was hard for us to figure out was getting the wheel to hit the carrot so it would fall into the bowl of ranch, the trigger we used to get the wheel to move kept sticking and preventing the wheel from moving, so we changed our string to a soft yarn string and shortened the trigger just a bit. We had to change our Rube layout just a little bit to make it work, but since we did, we are enjoying a healthy snack.
Concepts we learned:
A concept we learned for this project was the idea of Mechanical Advantage and how a simple machine can make energy input and work easier to complete. We used this concept of Mechanical Advantage to support the development of our Rube Goldberg to ensure the steps to our machine worked effortlessly and without failure. Mechanical Advantage comes in many forms; Pulleys, levers, wheels and axles, screws, ramps, and wedge, but for our project we mostly implored the use of levers and hammers to push objects, and to use hammers to whack marbles across a track.
How we went about designing our Rube Goldberg Machine:
We started our Rube by creating a base out of plywood to support the marble tracks we had in mind. We initially came up with designs on paper and tried to troubleshoot how they would all fit together on our base, and we often had to change an idea we had for our machine. We feel that inspiration came from the idea of having a machine that could complete an action for us, such as dipping food for us into a dressing, because we are HUNGRY
Skills we learned:
Some skills that we learned during this project were how to manage a group project, and some basic construction, mainly involving plastic tracks and hot glue. When we first got together we didn’t all know each other very well and we didn’t know how to work with each other. This seemed to last throughout most of the project, but going through into other group activities we will almost certainly be better at task delegation and responsibility.
Our rube is pretty ghetto, most of the things are improvised and glued or taped in a way that makes them work. Part of our marble track is a paint stir stick, and most of the things that are supposed to stay until hit with another part of the rube, are held in place by dry hot glue. Through this project we learned improvisation and that sometimes all you need to make something work is a thumbtack and some hot glue.
What steps were most challenging to make work?
At first it was the marbles on the first and second track they kept falling off, we tried gluing many different tracks for the marble, but in the end we put a little wall to prevent the marble from falling off the track. The other step that was hard for us to figure out was getting the wheel to hit the carrot so it would fall into the bowl of ranch, the trigger we used to get the wheel to move kept sticking and preventing the wheel from moving, so we changed our string to a soft yarn string and shortened the trigger just a bit. We had to change our Rube layout just a little bit to make it work, but since we did, we are enjoying a healthy snack.
Concepts we learned:
A concept we learned for this project was the idea of Mechanical Advantage and how a simple machine can make energy input and work easier to complete. We used this concept of Mechanical Advantage to support the development of our Rube Goldberg to ensure the steps to our machine worked effortlessly and without failure. Mechanical Advantage comes in many forms; Pulleys, levers, wheels and axles, screws, ramps, and wedge, but for our project we mostly implored the use of levers and hammers to push objects, and to use hammers to whack marbles across a track.
How we went about designing our Rube Goldberg Machine:
We started our Rube by creating a base out of plywood to support the marble tracks we had in mind. We initially came up with designs on paper and tried to troubleshoot how they would all fit together on our base, and we often had to change an idea we had for our machine. We feel that inspiration came from the idea of having a machine that could complete an action for us, such as dipping food for us into a dressing, because we are HUNGRY