Headphones

=Headphones= aaguilar12



Purpose
//The purpose of headphones/earbuds is to listen to your music without disturbing anyone else. They also help to keep other noises out so you can focus on your music.//

Energy Headphones use electrical energy.
There is a coil and a magnet inside the earbuds. When you have a coil and a magnet, it creates electrical energy. the vibration of the tiny cone creates the noise that you hear. (music, etc.)

Controls
//Some headphones have volume control, microphones, and some headphones are retractable.//

Materials
//Back case- protects the wires and the inside of the headphone Front case- goes into your ear Seal- holds the front case to the back case Wires- carry the energy from the device to your ear/speaker Magnet- needed for the speaker to work Coil- the electricity flows through the coil to make the tiny plastic cone move to create the noise or music in your ear. Some sort of plastic, rubber, or string to cover and protect the wires coming from the device to the earpiece.

You will also need some sort of device to listen to. Such as an ipod, a walk man, or MP3 player.//

Science
//The Scientific Principal for my device is EM Radiation because you connect your headphones to an ipod or radio in order to listen to something.//

"What's inside of your headphones?"
A better understanding on how the sound of your headphones is created. :)

Design
//Typical earbuds have two long wires leading to little speakers that are shaped to fit in your ear. Some earbuds have little rubber things on the end of them so they fit in your ear better and it makes them louder and more comfortable. Headphones are bigger and they fit over your ears. These headphones have a strap that go over your head like a headband. These headphones look like ear muffs. Earbuds are a lot more flexible and easier to carry around. Also Headphones don't have as good hearing as earbuds do.//

Evolution
//There have been many different changes with headphones. But the original headphones are still out there. Headphones used to be very big and bulky, now they have tiny headphones that don't even go over your head. There are also headphones that help you keep out a lot more sounds than headphones cold before. There are even wireless headphones now. They have improved headphones a lot but they still have the older and bigger ones.//

Competitor
Noise-canceling headphones Headphones (Noise-Cancelling)

Partners
Noise-canceling headphones, Ipods, speakers Voice Changer

Siblings
Noise-canceling headphones, headphones XBox 360 headset

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