Students Test Electromagnetism
In Designing with Technology class we have been studying electricity and some of its effects and applications. One effect is the corresponding magnetic field created by a coil of wire with a current. Using a fairly small electromagnet and a D-battery we ventured to the playground to see if the manufacturer’s claim of supporting 200 lbs would stand up to the test. It came close since it held 4 out of the 5 students in class. The students were surprised to see the strength of the magnetic field from a simple coil of wire. We then returned to the classroom to discuss and build another electromagnetic application, speakers. Using a Styrofoam cup, copper wire, and a magnet, each student made a simple speaker then hooked it up to the radio and listened to the music. Check out the day's activities in the slide show!