Battery: Energy source
Coil of Wire: Conductor
Paperclip: Connects/ completes the motor circuit by holding the coil of wire to the positive and negative ends
Magnet: Magnetizes/ aligns domains (keeps circuit moving)
Armature
The armature (part of the wire) had to be stripped, because it was insulated and would not complete the current, had it remained insulated. The armature had to be scraped precisely, so the coil of wire would make a full rotation, and a pulse of current would be sent every time the coil of wire turned, rather than all the time (this would result in a short circuit).
Why the motor turns...
The motor turns, because the coil of wire becomes magnetized (carries current). The magnetic field in this system moves around the current-carrying wire in a circular manner. According the the right hand rule,
Since the magnetic field is moving in a circular pattern, the force will push the coil around. Current travels through the entire system, while the force turns the coil in accordance with the right hand rule.
Video of a simple motor in action...
Note: Unfortunately, my group experienced some technical difficulties trying to get our motor to function properly. This video is from Joey, Michael, and Mo, who did a great job!
What it could be used for…
This motor would be best used in small objects requiring motors, like toy cars.
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