Magnets
Circuits
Electromagnets
Scientists
Vocabulary
100
2,000 years ago.
How long ago did the Greeks discover magnets ?
100
Series circuit and parallel circuit
What are two circuits?
100
1820
When was electromagnetism discovered?
100
Danish physicist Christian Orested.
Who discovered electromagnetism?
100
Magnetic pole
One of two points, such as the ends of a magnet, that have opposing magnetic qualities.
200
North and South
What are the names of the magnetic poles?
200
Lights, clocks, and computers
What is what are some examples of circuits?
200
A magnetic field
What does an electric current produce?
200
French scientist Andre-Marie Ampere.
Who helped Orestead with his research?
300
The region around a magnet in which magnetic forces can act.
Where do magnetic fields exist?
300
120V
What is the voltage for a breaker box for the United States?
300
A compass needle
What does the magnetic field move?
300
Joseph Henry
Who discovered a magnetic field could make an electric current?
300
Electromagnetism
The interaction between electricity and magnetism.
400
Lines that map out the magnetic field.
What are magnetic field lines?
400
Broken wires or water
What can cause a short circuit?
400
They can be turned on and off as needed.
Why are electromagnets very useful?
400
A electric current in the second wire.
What did Michael Faraday hope that the magnetic field of the electromagnet make?
500
You will have two magnets.
What happens if you cut one magnet in half?
500
A switch that automatically opens if the current is to high.
What is a circuit breaker?
500
Two solenoids allow the doorbell to work.
How does a doorbell work?
500
Electric Generator
A device that converts mechanical energy into electrical energy?
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