Magnetism
Vocabulary
Magnet Facts
Vocabulary
Magnetic Domains
100
What would happen if the north ends of two magnets were close together?
What is repel?
100
a rock that is magnetic and found in nature
lodestone
100
True or False: Like charges attract and unlike charges repel.
False. Like charges repel and unlike charges attract.
100
a magnet that keeps its magnetism for a long period of time.
Permanent magnet
100

Strong magnets have domains that are ___________

What is "Aligned"

200
If a south end of a magnet is close to a north end of a magnet, the magnets will _________.
What is attract?
200
a magnet that loses its magnetism after a short amount of time.
temporary magnet
200
Name four metals that magnets are attracted to.
Iron, nickel, cobalt, or nickel.
200
to push using a magnetic force.
Repel
200

Domains that are scattered and pointing in all directions are ____________?

What is Not magnetic or weaker magnets

300
True or False: All magnets have the same shape and size.
What is False?
300
A tool used to establish directions using a magnet.
compass
300
What is the world's largest magnet?
The Earth. Its magnetic fields help keep solar flares from hitting the earth.
300
to pull using a magnetic force.
attract
300

For a domain to be aligned and strong, the atoms should all be positioned _____________

What is in the same direction. 

400
True or False: All magnets have a north and south pole.
What is True?
400
a piece of iron that becomes a magnet when an electric current passes through a coil of wire wrapped around it.
electromagnet
400
What is a real life use of an electromagnet?
Electromagnetic cranes are used to lift heavy pieces of metal and move them around. Junk yards use them to lift and move cars.
400
the area of a magnet with the strongest force.
magnetic poles
400

Magnets can lose their Magnetism and lose alignment when?

What is being exposed to high temperatures, struck by a large force, or by being exposed to the opposite domain for long periods of time. 

500
Will a magnet attract copper, rubber, iron, or plastic?
What is iron?
500
the action of working against or opposing.
resistance.
500
You are testing jewelry to see if it is real gold or not. You decide to do a magnet test first. One piece attracts to the magnet but the other does not. Which piece may be real, and which one is definitely not? Explain your answer.
The one that attracts to the magnet is definitely not real gold because gold is not attracted to magnets. Only iron, cobalt, nickel, and steel are attracted to metals.
500
An object that can attract iron, nickel, cobalt, or steel objects.
magnets
500

A magnet that stays on the fridge for years and doesn't fall of is considered a ______________

What is a "permanent magnet"

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