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Vocabulary Mini Review Magnetism
A(n) ___________ can be made by coiling a wire around an iron nail and connecting it to current. Electromagnet
A _________ transformer is used to increase voltage. Step Up
A _________ transformer is used to decrease voltage. Step Down
__________ ________ is the process of creating an electric current by moving a magnet through a loop of wire. Electromagnetic Induction
The _________ ________ is the area surrounding a magnet that exerts a magnetic force. Magnetic Field
_________ ________ is current that travels in only one direction. Direct Current
_________ ________ is current that changes direction. Alternating Current
A ________ is used to increase and decrease voltage. Transformer
A ________ magnet retains its magnetic properties for long periods of time. Permanent
A ________ converts mechanical energy into electrical energy. Generator
An __________ ________ converts electrical energy into mechanical energy. Electric Motor
Household voltage in the U.S. is _____ volts. 120
What type of current is produced from a dry cell battery? Direct Current
What type of current is produced from power lines? Alternating Current
Where is the magnetic field the strongest? At the Poles
What happens when a North pole of one magnet is brought near the North pole of another magnet? They Repel
Changing the _______ of an electromagnet changes both the strength and direction of the current. Current
What do the electrons in a magnet look like? They are Aligned
What 3 metals can be made into magnets? Iron, Cobalt & Nickel
What causes the Earth’s magnetic field? Molten Iron & Nickel in the Core
How are these guys related to electricity?. Magnetism Unit Vocabulary 1. Magnet- Definition- Materials that attract iron or contain iron. Sentence- I.
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