A Controlled Experiment - Electromagnet Lab

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A Controlled Experiment - Electromagnet Lab
A Controlled Experiment - Electromagnet Lab
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For a little practice designing controlled experiments, students use batteries, steel nails (I recommend galvanized), copper wire and paper clips to experiment with electromagnets. Students can choose a number of options to change in order to test what increases the strength of the electromagnet, but I would recommend the coils because it's a lot cheaper than buying tons of batteries. (The batteries are short-circuited o they don't last long.)


http://www.youtube.com/watch?v=t8t-htjHeMA
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2
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Teaching Duration
45 Minutes

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A Controlled Experiment - Electromagnet Lab
A Controlled Experiment - Electromagnet Lab