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Build a Simple Speaker

Materials
1
Difficulty
2
Safety
1
A speaker is build from a coil of wire, a strong magnet and other simple materials, or even just a coil of foil on cardboard and a magnet.
  • See Also
    Simplest Electric Motor
  • Web Links
    www.josepino.com/?howto-speaker
    Author : Jose Pino
    Description :
    www.instructables.com/id/Build-your-own-speaker-from-scratch/
    Author : Instructables
    Description :
  • Videos
    www.youtube.com/watch?v=lTkzxfIX4EY
    Author : ImaginationStationOH
    Description : Starts building speaker at 1:30, uses coil of foil on cardboard.
    www.youtube.com/watch?v=uGiKFRe_68s
    Author : ProjectPlace
    Description :
  • Categories
    Sound | Electricity and Electrostatics | Magnetism
Materials
1: Easy to get from supermarket or hardware store
2: Available in most school laboratories or specialist stores
3: Requires materials not commonly found in school laboratories

Difficulty
1: Can be easily done by teenagers
2: Can be done by science teachers
3: May require a more experienced teacher

Safety
1: Minimal safety procedures required
2: Some safety procedures required to perform safely
3: Only to be attempted with adequate safety procedures and trained staff

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