Quick Links
Skip to main contentSkip to navigation

Elgin Public Schools

Working...

Ajax Loading Image

 

Technology Students Hear the Music

Students make their own speakers

Chris and Austin wrapping the copper wire to make the voice coil.

Can you really make a speaker out of just a Styrofoam cup, copper wire and a magnet?  Designing with Technology students found out it really does work.  After studying electricity and the corresponding magnetic effects, the students built their own speakers and hooked them up to a radio to make music.  We disconnected the built-in speaker of a radio and soldered on alligator clips so the students could hook up their own homemade speakers with the copper wire leads off their coil on the base of a cup. 

Kara demonstrates her speaker.
Most were surprised by the simplicity of the design and enjoyed experimenting with different magnets.  We also dismantled a stereo speaker to compare the commercial design to our homemade speakers.

 

Speaker Instructions

Technology Students Hear the Music

Casey Reppertkc90_2009@hotmail.comPender High School

Sep 09, 2008

That looks like it would be pretty fun. Was that done in like a class or was it just like a one day sort of thing?
Heidi Rethmeierhrethmeier@esu8.org

Sep 10, 2008

I've attached the instructions to make the speaker. Enjoy!
Mr. Fisher
EPSprincipal

Sep 11, 2008

Cool activity! Well done class.