101science.com has a bounty of useful information that will help you better prepare for tests. http://101science.com/Radio.htm
Check out the Electronics Club website. Select the “Study Electronics” link to view guides about all things basic to electronics. http://www.kpsec.freeuk.com/study.htm
Here is an introduction to electronics in simple easy reading format.
http://www.design-technology.info/electronics/
Don’t forget Youtube. A wealth of videos on basic electronics is at your disposal.
http://video.google.com/videosearch?hl=en&rlz=1W1GGLL_en&resnum=0&q=introduction+to+electronics&
um=1&ie=UTF-8&ei=Q_eoSvi5HqHBtwfy36WpCA&sa=X&oi=
video_result_group&ct=title&resnum=4#
Want more on basic electronic components, check out this link at the Massmind organization. http://www.massmind.org/images/www/hobby_elec/e_parts.htm
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