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Learn about electricity with this simple science project for kids � Use a battery, a magnet, and some copper wire to build your own electric motor that really spins! This is a project that I have been wanting to try for some time, so when it came build your own electric boat motor 12 in our science book, I decided to go for it.

The boys and I have been learning about magnets and electricity using Exploring Creation with Chemistry and Physics. I totally recommend this series! Safety Notes: This electric motor project is great to do with kids.

My 12 year old could do this on his own, but supervision is still needed. Neodymium magnets are extremely strong and should only be Build Your Own Electric Boat Motor 30 used under supervision and should never be used with kids who might put them in build your own electric boat motor 12 mouths. Also, the copper wire may become hot, so be aware. First, cut a 112 of wire 7 inches bkild. Bend a small loop in the wire in the center as shown.

Now bend each of the ends as shown. You need the both ends of the copper wire to gently touch the magnet. It will take a little bit of work to adjust the copper wire so that it touches the top of the battery and both boah touch Build Your Own Electric Boat Motor 120 the magnet.

The copper wire Once you have it just right, the wire will begin to spin! Try flipping the magnets over and watch what happens to the direction of the motor. When you reverse the poles of the magnets, the motor will spin the other way! So cool. This motor is called a homopolar motor, and it was build your own electric boat motor 12 demonstrated by Michael Faraday in This motor works because of electromagnetic force, called the Lorentz force.

A basic definition of the Lorentz build your own electric boat motor 12 is the force exerted by a magnetic field on a moving electrical charge. You can read more about it. A simplified explanation is that electricity flows out of the battery, through the copper wire, and into the magnet. The magnet sends an electrical charge through the other side of the wire and back Build Your Own Electric Boat Motor 405 to the battery, completing the circuit. The wire and the magnet both have electric fields around them, and these fields repel each other, exerting a force on the wire causing the wire to spin.

Pretty neat, huh? Here is another article about homopolar motors if you want to learn. After we got our motor working, we decided to make another one with an optical illusion! I cut another piece of wire about 10 inches long and cut off the extra ends when I was finished shaping it.

After making the loop in step 1, I bent the wire up to flectric me something to tape an index card to. The motor spins a little more slowly because of the added weight of the index card, but it still looks really neat!

They are nearly the same diameter as a AA battery. I got a pack of elecfric on Amazon as listed, but it was very finicky to complete the circuit. Much easier for my 4th through Build Your Own Electric Boat Motor Engineer 6th graders with the larger size. The fish-in-bowl spinning optical illusion is called a 'thaumatrope' by the way. Thanks for the experiments. Brilliant stuff. This post contains Amazon affiliate links. Want to see the motor in action?

To make your motor, you will need: One Electirc Battery Copper Wire � We used 18 gauge A neodymium rare earth magnet � We used two of this size of neodymium magnets Wire yuor Needle nosed pliers Ruler For the optical illusion version: Index card Tape Colored pencils First, cut a section of wire 7 inches long.

Then bend both sides. Attach your magnets to the negative end of a AA battery. Why does it work? Try making it an optical illusion! Then I drew a fish on one side, and a fishbowl on the other .

Or go to Wal Mart and get a trolling motor prop. There also was a controller with a joy stick, but I'm afraid it went into the dumpster. The voltages are low enough that they should not present an electrocution risk but take all appropriate precautions when working with electricity and moving mechanical parts. Try these. Ahhh now this is a different story, and far more in Rick Willoughby's field, where I would consider him to be an expert, be guided by him My project utilised computer control and a lot of new-to-me equipment such as touch screens, Bluetooth, Arduinos and oscilloscopes.

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