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The project

1. My headphones, Prototype #1 worked but wasn’t loud enough. The goal of Prototype #2 was to find out what makes the sound of the headphone louder.
2. I change one design variable to see how it affected sound volume. The design variable that I change was The number of the wire Instead of 100 I put 50.
3. I kept all other design variables the same because if I changed more them one seeing them I would not know exactly what the sound is.

Data

1. The Value of how many  times that I  rotates the wire for my prototype  #1 was 100
2. The Value of how many times that I rotates the wire for my prototype#2 was 50
3. My prototype#2 sounded louder compared to prototype#1.

Claim

My prototype #2 produces louder sound.

Reasoning

My data suggest that this is true because prototype #2 had a smaller diaphragm and sounded louder.

Significance

If  I were to make a prototype #3, I would add more wire and more magnet in order to get  the loudest sound.