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Others Like “Build a Simple Electric Motor!”

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Science Fair Project Idea
The electricity you use to power everyday devices is generated by electrical generators. These fascinating and powerful machines rely on magnets to function. Though they might seem extremely complicated, once you finish this science project, you will understand how, why, and when they generate electricity. You will build your own generator, make small changes in how exactly the magnets are placed, and test when moving magnets generate electricity. Read more
Elec_p079
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites You should have the patience and dexterity to coil several layers of wire neatly (or find someone who can help you). You will also need to hook up a basic circuit. Understanding electric circuits is not a prerequisite for this science project, though it will enable a deeper understanding of the electric generator.
Material Availability A kit containing all the specialty items needed for this project is available from the .
Cost Low ($20 - $50)
Safety Neodymium magnets are very strong. Follow the safety guidelines in the Procedure for working with these magnets.
Science Fair Project Idea
The electricity in your home probably comes from a power plant, but did you know that you can actually generate your own electricity? Wondering what it would take to light up a small light? This is your chance! In this electronics science project, you will build your own electric generator and investigate how to light up not just one, but two lights. Read more
Elec_p078
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites You should have the patience and dexterity to coil several layers of wire neatly (or find someone who can help you). You will also need to hook up a basic circuit. Understanding electric circuits is not a prerequisite for this science project, though it will enable a deeper understanding of the electric generator.
Material Availability A kit containing all the specialty items needed for this project is available from the .
Cost Low ($20 - $50)
Safety Neodymium magnets are very strong. Follow the safety guidelines in the Procedure for working with these magnets.
Science Fair Project Idea
You may be familiar with permanent magnets—the kind that hang on a refrigerator. But did you know that other magnets, called electromagnets, can be turned on and off? When turned on, electromagnets act just like permanent magnets, but if you turn them off, their magnetic properties disappear. Electromagnets are an important part of many electronic devices, like motors, loudspeakers, and hard drives. You can create an electromagnet with a simple coil of wire and a battery. In this project,… Read more
Elec_p035
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires specialty items, available in the . Estimated project time includes shipping for the kit.
Cost Low ($20 - $50)
Safety The electromagnet can become hot during periods of extended use.
Science Fair Project Idea
In this science project, you will build what might be the world's simplest motor. It has just four basic parts: magnets, a battery, a screwdriver, and a short piece of wire. It takes only minutes to assemble, but it provides a wonderful device to explore how electricity and magnetism combine to produce a fast-spinning motor. Read more
Elec_p065
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- Less Details
Time Required Average (6-10 days)
Prerequisites Some familiarity with basic electronics and physics would be helpful, but is not required.
Material Availability Specialty items are required. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Minor injury is possible. Wear safety goggles at all times. Be sure to read the important safety notes at the beginning of the Experimental Procedure before you begin.
Science Fair Project Idea
If you like listening to music and making crafts, this is a great project for you. You will learn how to make a completely functional speaker that you can use to listen to real music...out of paper! Along the way, you will learn about the science behind how a speaker works. Speakers depend on magnets to create sound—does adding more magnets make the sound louder? Try this project to find out! Read more
Phys_p101
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites None.
Material Availability Specialty electronics materials required. See the Materials list for details.
Cost Average ($40 - $80)
Safety No issues.
Science Fair Project Idea
Today magnetic recording is used in audio and video cassette recorders, and computer disk drives. Did you know that you can also use an electromagnet to record and play back from a steel wire? In fact, this is how magnetic recording got started. This project shows you how to build a simple wire recorder. Read more
Elec_p015
+ More Details
- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Eye protection required during construction
Science Fair Project Idea
Have you ever wondered how a radio can grab signals that are transmitted through the air and convert them into sound? In this science project, you will build your own AM radio receiver from scratch and use it to listen to AM radio broadcasts. With your crystal radio you will be able to experiment with the circuit and the antenna to get the best reception. Read more
Elec_p014
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- Less Details
Time Required Average (6-10 days)
Prerequisites To do this science project, you must live in an area where you can receive at least one strong AM radio station. You can check for this with a car or portable radio.
Material Availability Specific circuit items are required. A Science Buddies kit is available for your convenience. See the Materials and Equipment list for details
Cost Average ($40 - $80)
Safety Never operate your crystal radio during a thunderstorm. When not in use, always disconnect your antenna from the radio circuit, and connect it directly to the ground rod. Be sure to wear safety goggles when installing the ground rod, especially if you are using a metal hammer. An adult's help might be necessary for some steps in the Procedure.
Science Fair Project Idea
You have probably read all about forms of alternative energy like solar and wind power. But what about human power? With the aid of a coil of wire and some magnets, you can generate electricity with nothing more than a flick of your wrist. In this project, you will build a small hand-powered electrical generator that can power a series of tiny lights. Get ready to save the planet and get some exercise at the same time! Read more
Energy_p009
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project requires some specialty electronic components. A kit is available from the . The Time Required estimate includes time for gathering specialty materials. The actual project only takes 1 day.
Cost Average ($40 - $80)
Safety

Neodymium magnets are very strong and can pinch your fingers when they come together. You should keep them away from pets and small children because they can cause serious harm if ingested. As with any magnet, you should keep them away from computers, cell phones, and credit cards.

Adult supervision is required when using a hobby knife.

Science Fair Project Idea
Motors are used in many things you find around your house, like your refrigerator, coffee maker, and even a lawn mower. In this electronics science fair project, you will get to build a simple motor, using a kit, and then test how the number of batteries (amount of voltage) used to power the motor affects its performance. Read more
Elec_p057
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Specialty items: You will need a switch motor kit, ready for assembly. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Minor injury is possible, so be sure to wear safety goggles. Adult supervision is recommended.
Science Fair Project Idea
Have you ever felt really frustrated? Maybe you were playing a video game and could not easily figure out a particularly challenging puzzle. Or maybe there was something you really wanted but you could not have it for some reason. However it has happened, what do you do when you get frustrated? What about other people — what kind of behaviors have you seen others display when they get frustrated? Do they cry, jump up and down screaming, just give up, or become aggressive? In this human… Read more
HumBeh_p051
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- Less Details
Time Required Very Long (1+ months)
Prerequisites You must have access to at least 30 middle-school aged test subjects. Try to get an even mix of boys and girls. You must also have access to a video camera.
Material Availability Specialty equipment is required. See the Materials and Equipment list for specific details.
Cost Average ($50 - $100)
Safety Wear safety goggles when hammering the nails into the piece of wood and when using the drill.
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