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Magnets and Magnetism
Magnetism from Electricity
Electricity from Magnetism
Vocabulary
Miscellaneous
100
Magnets can be classified as...
What are ferromagnets, electromagnets, temporary magnets, and permanent magnets?
100
It measures current.
What is a galvanometer?
100
Electromagnetic induction is very important for the generation of ___________
What is electrical energy?
100
Any material that attracts iron or things made of iron
What is a magnet?
100
An electromagnet
What is a solenoid that has an iron core?
200
All magnets have __ poles
What is 2?
200
All electric motors have a loop or coil of wire that can rotate, or ______
What is an armature?
200
The ______ is turned instead of the coils in most large generators
What is magnet?
200
electromagnetism
What is the interaction between electricity and magnetism?
200
Like magnetic poles repel each other… Opposite magnetic poles _______
What is attract?
300
The pole of a magnet that points to the south
What is a south pole?
300
The strength of the magnetic field of a solenoid depends on...
What is loops per meter are used?
300
The number of loops in the primary and secondary coils of a transformer determines whether it increases or decreases the _____
What is voltage?
300
A coil of wire that produces a magnetic field when carrying an electric current
What is a solenoid?
300
The pole of a magnet that points to the north
What is a north pole?
400
In a _______, the north and south poles of the atoms line up and make a strong magnetic field.
What is a domain?
400
He discovered the relationship between electricity and magnetism from a compass.
Who is Hans Christian Oersted?
400
An electric generator uses __________ ________ to change mechanical energy into electrical energy
What is electromagnetic induction?
400
a device that increases or decreases the voltage of alternating current
What is a transformer?
400
He was the first person to discover how to make a magnetic field into electric current.
Who was Joseph Henry?
500
A magnetic field exists in the region around a magnet in which _____________ ______ can act
What is magnetic forces?
500
Electromagnets attract things only when a _____ exists in the wire
What is current?
500
He was the first person to publish his results on how a magnetic field makes electric current.
Who is Michael Faraday?
500
The process of making an electric current by changing a magnetic field.
What is electromagnetic induction?
500
The strongest effects are near the ____ of a bar magnet
What is ends?