Act_16 - Name _ Section _ Period 16 Activity Sheet: Motors...

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61 Coil of wire Name ____________________________ Section __________________ Period 16 Activity Sheet: Motors 16.1 How Do Direct Current (DC) Electric Motors Work? Spinning rotors. In this activity, we see why the rotor of an electric motor spins. a) Place a permanent magnet on a plastic spinner and make the magnet spin by holding another magnet nearby. The magnets simulate a motor. Could you make a practical motor using only permanent magnets? Explain why or why not. b) Place a solenoid near the magnet on the spinner. Make the magnet spin by alternately connecting and disconnecting the solenoid from a 3 battery tray. Could you make a practical motor using electromagnets (like the solenoid) and a continuous, unchanging current? Explain why or why not. c) What type of current is required to make a motor run? _ _______________ Activity 16.2: How Can You Make a Simple Motor? a) Building a motor. Refer to the model on your table. 1) Cut a 3 meter length of coated wire. 2) Wrap the wire into a circle 3 to 4 cm in diameter, leaving 4 cm of wire protruding from each side of the circle. 3) Use sandpaper to carefully scrape the coating off of one side of one end of the protruding wire. Scrape all of the coating off of the other end of the wire. 4) Place the wire circle on a paper clip support stapled to a wooden block. 5) Use connecting wires to attach the positive end of a 3 battery tray to one side of the metal support and the negative end to the other side of the support. 6)
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This note was uploaded on 06/11/2011 for the course PHYSICS 103 taught by Professor Staff during the Spring '10 term at Ohio State.

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Act_16 - Name _ Section _ Period 16 Activity Sheet: Motors...

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