Magnets Basics
Electric/Magnetic Fields
Practical Devices
Induction
100
The rule for how magnets interact
What is "opposite poles attract"?
100
The direction magnetic fields point
What is North to South?
100
A permanent magnet which is allowed to rotate
What is a compass
100
What is produced when a magnet moves relative to a coil of wire
What is current
200
A group of atoms with their magnetic fields aligned
What is a domain?
200
The field(s) around a moving electron
What are electric and magnetic fields?
200
A generator
What is a device which converts kinetic energy into electrical energy
200
A simple way to get more current out of a generator
What is move things faster/make more coils?
300
The reason not all iron is magnetic
What is "the domains are all pointing in different directions"?
300
The angle between the force on a moving particle & the magnetic field
What is 90 degrees?
300
What the magnets in a speaker do to the coils
What is "push and pull on them"?
300
What changing magnetic fields produce, even when a conductor is not around
What are changing electric fields?
400
The parts of a permanent magnet which are the strongest
What are the poles?
400
What a magnetic field has to be doing near a conductor to produce current
What is changing?
400
The part in most power plants which allows steam to make a generator rotate
What is a turbine?
400
The production of current based on the relative motion of wires or magnets
What is induction?
500
A theoretical magnetic object which has never been found
What is a single magnetic pole?
500
What is produced whenever a magnet or charged particle is accelerated
What is an electromagnetic wave?
500
The reason you can't ever get electrical energy for free
What is "it takes work to make magnets/coils move"?
500
The reason a magnet falls slowly through a copper tube
What is "it creates current which creates a magnetic field that opposes the falling magnet"?
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