How to create a small generator with magnets powered by motion?
Answer:
first you need magnetic wire. coil this arround a iron core and rotate it inside the magnet.
the science principle is to move/ agitate the electrons to move in one directions. electrons are negatively charge. does by alternating the positive and negatve poles of the magnet it will push or pull the electrons. the faster you do this you'll produce a current off electron flow.
for your science project get a wheel. coil the magnetic wire perpendiculat to the wheel or parallel to its axel with booth ends strip from its coating. place a terminal that touches the strip wire and connect this terminal to a load/ a light bulb. place the magnet near the wheel and turn the wheel!
there you have it your small generator! :))
A varying magnetic field induces current in a coil.
The easiest way to produce electricity (cheap) is to use a brushless DC motor. As you turn the shaft, you will see voltage appear across the terminals. Then you will need to build some kind of DC-DC or DC-AC converter and probably use it to charge a capacitor or a battery. Google "Brushless DC Motor" and Generator. I am sure you will find some good stuff.
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