Electromagnet Presentations

Electromagnets work by:

• The north pole being stronger than the south pole.

• The south pole being stronger than the north pole.

• An electric current running through a wire to create a magnetic field.

• A magnetic field running through a wire to create an electric current.

Industrial magnets are examples of:

• Magnetite

• Solenoids

• Electromagnetic spectrum

• Solar power

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Industrial strength magnets can

• Lift a car.

• Fly a plane

• Turn a motor.

• Play music in a speaker

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What part of the motor rotates?

• Spindle

• Motor

• Magnets

• Rotating coil

What is an example of an item with an electric motor?

• Scissors

• Cooling Fan

• Headphones

• Cell phone charger

MRI stands for

• My Radiology Image

• Mechanical Radical Instrument

• Magnetic Resonance Imaging

• Magnetic Resting Instrument

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How does MRI use electricity and magnetism?

• It plugs into the wall and turns on a magnet.

• The electricity current creates an electromagnet that aligns your protons to be read by the MRI machine.

• The electromagnet works like a camera to take pictures like an x-ray.

• I have no idea what an MRI is.

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How do speakers use electricity and magnetism?

• The electricity creates an electromagnet that reacts with the permanent magnets to cause a mechanical wave that sends sound waves from the speaker.

• The electricity current runs to make a permanent magnet that sends electric signals to your ear.

• The speakers vibrate because of electricity and magnetism, for a reason that is explained by science.

• The science behind it doesn't matter, i just like to listen to music.

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Speakers have....

• Electromagnets and permanent magnets

• Speaker material

• Science Magic

• Little people that sing to me

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Maglev Trains and other magnet levitation devices work due to...

• The repelling of the poles

• The attraction of poles

• The current running through the wire creates an attraction

• Black magic, trains shouldn't float.

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