Magnetism is a force of this by magnetic materials.
What is attraction?
100
This is the name given to groups of atoms whose magnetic poles line up in the same direction.
What is a magnetic domain?
100
This is a process by which a material can be made into a magnet.
What is magnetic induction?
100
He was the first person to suggest an explanation for one pole of a magnet always pointing to the north and the other to the south when the magnet was hung from a string.
Who is William Gilbert?
100
This is a temporary magnet made by wrapping a current-carrying wire around a metal core.
What is an electromagnet?
200
This happens when the same poles are in close proximity to each other.
What is repelled?
200
This describes the region of magnetic force around a magnet.
What is a magnetic field?
200
These are two materials that are easy to magnetize.
What are alloys of iron, nickel, and cobalt?
200
The earth's geographic north pole is close to this pole.
What is the magnetic south pole?
200
This is a way the strength of the magnetic field can be increased in an electromagnet.
What is increasing the number of turns to the wire coil or increasing the amount of current?
300
This happens to the new "ends" of a magnet cut in half.
What is each "new end" will have north and south pole?
300
These lines show the shape of a magnetic field.
What are magnetic lines of force?
300
This is one way a magnet can lose its magnetism.
What is heating or dropping a magnet?
300
When a compass points north it is actually aligned to this pole.
What is the magnetic south pole?
300
What kind of a magnet would an electromagnet be?
What is temporary?
400
This is the name of a naturally occurring magnetic iron ore.
What is a magnetite?
400
This is how the domains of unmagnetized materials appear.
What is the domains point in different directions?
400
This kind of magnet is hard to magnetize.
What is a permanent magnet?
400
Earth is surrounded by a magnetic field called this.
What is the magnetosphere?
400
This is a device that makes use of an electromagnet.
What is a radio, telephone, computer, or a large magnet used to lift heavy objects like junk cars.
500
This is the force of attraction or repulsion by magnetic materials.
What is magnetism?
500
This is how the magnetic lines of force are are at each of the poles of a magnet.
What is the magnetic lines of force are closest together?
500
This can happen to the magnetic domains within a magnet when it is dropped.
What is the magnetic domains will point in different directions and cancel each other out?