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electromagnetism
Electromagnetism
100
name two uses of electromagnetism
generators and motors, relays, industrial uses, and transportation.
100
What is the definition of electromagnetism
the force that causes the interaction between electrically charged particles.
200
What scientific principle is generators and motors example of?
electromagnetic induction
200

What are some ways to strengthen an electromagnet? List 3.

More coils, more batteries, DC instead of AC

300
What part of relays does electromagnets control?
switches
300
In Europe and Asia what do they use electromagnets for?
to levitate the trains to move at fast speeds.
400
Name the three metals that respond to a magnetic field?
Iron, nickel, and cobalt.
400

What are some uses of electromagnets? List 3.

Generators, Scrap yards, motors...

500
What is an Electromagnet?
a type of magnet in which the magnetic field is produced by the flow of electric current. 
500
What is current?
the movement of electrons along a conductor.