In Merideth's physics and engineering class we built a model of the capitol because that is what my group was. We also had to make circuits that run throughout our projects. The engineering part was obviously building the landmarks.
Headphones technical presentation
For physics we built a pair of functioning headphones for Meredith. We used 100 wraps of 30 gauge wire and two rare earth magnets.
To build our headphones I made an engineering design process which basically narrows down my choices on what type of headphones I should build. The first step in this process is brainstorming and research which is basically brainstorming what aesthetic looks you want on it, while the research is how to build a pair of headphones. For my brainstorming i printed out pictures with headphones with baseball team logos on them because baseball is what I want to do in the future. The next two steps were top three ideas and a decision matrix. For my top three ideas I had a pair of square headphones that would be 4 inches high, my second idea was a pair of regular headphones with a bunch of baseball references on them, and for my final idea I had another pair of circular headphones but this time there were fish on them because I would also like to study marine biology. The decision matrix is putting your top three ideas in a chart that grades all your choices based on Creativity, Cost, and Durability. The first idea scored a 9, the second scored 11, and the last scored a 8. This flows into our final step in this which is your top idea, and my final idea was obviously idea number 2.
Headphones work in a easy and amazing way. The headphones have something in them called a diaphragm which gets moved quickly by the speaker inside the headphones. Sound doesn’t exactly just reach your ears like magic, it actually has a process. When the speaker oscillates the diaphragm it makes sound and that sound goes into the air and oscillates over and over again into it finally reaches your ear and is audible.A soundwave is basically just waves that transport energy in a medium without moving it. The type of waves that headphones create are simple transverse waves, and it has a displacement of molecules as well as time. The circuitry in my headphones is a parallel circuit which is basically a type of circuit where electrons can travel through more than one path. The object that is outputting the music isn’t producing sound waves through the headphones, it’s producing an electric current through the circuitry in the headphones. For headphones to translate an electrical signal into an audible sound, speakers come with a electromagnet, and a metal coil which creates a magnetic field when an electric current flows through it. The electromagnets in the headphones work when pulses of electricity pass through the coil of the electromagnet. Electromagnetic induction is the production of an electromotive force across a conductor.
Headphones work in a easy and amazing way. The headphones have something in them called a diaphragm which gets moved quickly by the speaker inside the headphones. Sound doesn’t exactly just reach your ears like magic, it actually has a process. When the speaker oscillates the diaphragm it makes sound and that sound goes into the air and oscillates over and over again into it finally reaches your ear and is audible.A soundwave is basically just waves that transport energy in a medium without moving it. The type of waves that headphones create are simple transverse waves, and it has a displacement of molecules as well as time. The circuitry in my headphones is a parallel circuit which is basically a type of circuit where electrons can travel through more than one path. The object that is outputting the music isn’t producing sound waves through the headphones, it’s producing an electric current through the circuitry in the headphones. For headphones to translate an electrical signal into an audible sound, speakers come with a electromagnet, and a metal coil which creates a magnetic field when an electric current flows through it. The electromagnets in the headphones work when pulses of electricity pass through the coil of the electromagnet. Electromagnetic induction is the production of an electromotive force across a conductor.