TITLE

Coffee Can Speakers: Amazing Energy Transformers

AUTHOR(S)
Wise, Kevin; Haake, Monica
PUB. DATE
March 2007
SOURCE
Science & Children;Mar2007, Vol. 44 Issue 7, p36
SOURCE TYPE
Academic Journal
DOC. TYPE
Science Experiment
ABSTRACT
The article presents information on a science activity on how to build, test, and improve "coffee can" speakers. The objective of the activity is to make student observe first-hand how loudspeakers work to convert electrical energy to sound. The activity is appropriate for students in grades three to six. For the activity, arrange the students into working groups of no more than four. Set ground rules for conducting the activity best suited for the students. Start the building process by showing them how to make a coil by winding magnet wire around a round form such as a cardboard tube.
ACCESSION #
24252441

 

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