This property of matter is characterized by the attraction and/or repulsion of unlike and/or like poles.
What is magnetism?
100
This could be added to the center of a wire coil to increase the strength of the electromagnet.
What is an iron core?
100
Electrons move along wires in this manner, until the direction of the current is changed.
What is in one direction?
100
Power for our homes is produced by many generators here.
What is power plant?
100
20 primary coils --- 10 secondary coils
Input 50V --- this is the output
What is 25V?
200
Opposites attract and same poles do this.
What is repel?
200
Used in a series circuit and calibrated in amperes.
What is an ammeter?
200
Electromagnetism is the process of producing this with electric currents.
What is magnetism?
200
This type of current is characterized
by currents that reverse directions in a regular pattern.
What is alternating current?
200
10 primary coils --- 100 secondary coils
600V output ---this is the input.
What is 60V?
300
One of these THREE things may happen if you were to move one bar magnet around another?
What is attract, repel, or nothing?
300
When this flows through a moveable electromagnet, a magnetic field is induced.
What is current?
300
In 1831, these two scientists paved the way for electromagnetic induction.
Who are Faraday & Henry?
300
Device that can change the voltage of an alternating current.
What is transformer?
300
Input 240V --- Output 120V
30 Primary coils --- this many secondary coils
What is 15?
400
This is groups of atoms aligned to their magnetic poles so that all like poles face the same direction.
What is magnet domain?
400
This doodad serves as a reversing switch that rotates with the electromagnet to help change the direction of the current.
What is a commutator?
400
This produces enough energy to power our homes by rotating a loop of wire in a magnetic field.
What is a generator?
400
Transformer that decreases
the voltage of a current.
What is step-down?
400
Input 500V --- Output 100V
20 Secondary coils --- this many primary coils
What is 100?
500
This naturally occurring mineral was used over two thousand years ago to study magnetism.
What is lodestone?
500
Ammeter and voltmeter are both types of this device that is used to detect electric currents.
(Double points if you can pronounce it correctly the first time, with no help.)
What is galvanometer?
500
Currents may also be produced by electromagnetic induction by moving a magnet in this manner of a coil of wire.
What is in & out?
500
This is the type of current used by dry cell batteries.
What is direct current?
500
Input 600V --- Output 75V
8 Secondary coils --- this many Primary coils