Vocabulary
Magnets
Electromagnetism
Electricity
Random
100
Any material that attracts iron or things made of iron.
What is a magnet?
100
Parts of a magnet where the magnetic field id strongest.
What are magnetic poles?
100
Devices that change electric energy into mechanical energy.
What are electric motors?
100
Changing magnetic fields cause this.
What is an electric current?
100
Increases the voltage of an alternating current.
What is a step-up transformer?
200
A solenoid wrapped around an iron core.
What is an electromagnet?
200
This happens when the domains in an atom become unaligned.
What is demagnetized?
200
A type of magnet that can be turned on and off.
What is an electromagnet?
200
Uses electromagnetic induction to change mechanical energy into electrical energy.
What is an electric generator?
200
The electric current in a wire creates a magnetic field that exerts a force on the magnet can cause this.
What is moving the magnet?
300
Points on a magnet that have opposite magnet qualities.
What are magnetic poles?
300
The magnetic south pole of Earth.
What is the geographic North Pole?
300
This may be hundreds of times stronger in an electromagnet than in a solenoid alone.
What is a magnetic field?
300
When an electric current is made by changing a magnetic field.
What is electromagnetic induction?
300
The movement of electric charges in the Earth’s core causes this.
What is Earth's magnetic field?
400
Parts of an atom that align to cause magnetism.
What are domains?
400
A type of magnet that has strong magnetic properties.
What is a ferromagnet?
400
A device that measures currents.
What is a galvanometer?
400
Electric Generators produce this kind of current.
What is an alternating current?
400
Formed when charged particles from the sun hit oxygen and nitrogen atoms which become excited and then give off light of many colors.
What is an aurora?
500
Coil of water that produces a magnetic field when carrying an electric current.
What is solenoid?
500
Magnets that are caused by an electric current.
What is an electromagnet?
500
Part of an electromagnet that's magnetic field is increased by the solenoid.
What is the iron core?
500
Increases or decreases the voltage of alternating current.
What is a transformer?
500
A loop or coil of wire that can rotate in an electric motor.
What is an armature?
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