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Magnetism
Vocabulary
Applying Knowledge
Vocabulary the Sequel
Magnetic Technology
100
What would happen if the north ends of two magnets were close together?
What is repel?
100
a magnet that loses its magnetism after a short amount of time.
temporary magnet
100

You want to lift up heavy metal cars and other scrap in a junkyard. This is the type of magnet you would use. 

What is an electromagnet?

100

Like forces ________.

What is Repel?

100

The needle of a compass points towards the magnetic ____________

What is south?

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 keeps its magnetism for a long period of time.
Permanent magnet
200

You notice that when you hold your compass near your pocket, the compass needle is no longer pointing north. You know you don't have any magnets on you, but this might be in your pocket.

What is a magnetic metal or an electronic device?

200

Opposite forces_________.

What is attract?

200
An electromagnet must be part of an electrical ______.
What is circuit?
300
Will a magnet attract copper, rubber, iron, or plastic?
What is iron?
300
A tool used to establish directions using a magnet.
compass
300

You are testing jewelry to see if it is real solid 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 their alloys are attracted to magnets.

300

The force of repulsion (pushing) or attraction (pulling) between poles of magnets.

What is magnetism?

300

Two ways to produce a stronger voltage from a generator.

-spin the magnet faster

-add more loops of wire

-use a stronger magnet

-use bigger wire loops

400
True or False: All magnets have a north and south pole.
What is True?
400
the area of a magnet with the strongest force.
magnetic poles
400

Your phone charger has this type of transformer so that you do not damage the phone when charging due to too high of a voltage.

What is a step-down transformer?

400

A device which increases or decreases voltage by using coils of wires around a core.

What is a transformer?

400

A device that contains a rotating electromagnet that changes electrical energy to mechanical energy

What is an electric motor?

500

A small region within a magnetic material in which the magnetization is in a uniform direction.

What is a magnetic domain?

500
a piece of iron that becomes a magnet when an electric current passes through a coil of wire wrapped around it.
electromagnet
500

You notice that a generator has a spinning magnet inside. Explain why the generator has a spinning magnet and not one that moves back and forth.   

Generators spin magnets to produce alternating current, where the electrons move back and forth through the wire. 

500

The flow of electrons through a conductor.

What is electric current?

500

You notice that the input side of your transformer has less wire coils than the output side. This is the type of transformer. 

What is a step-up transformer?