Magnetic

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Magnetic Substances
Magnetic Interaction
Making Magnets
Electro- magnets
Electricity Magnetism
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Two names for a rock that is naturally magnetic
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What are magnetite and lodestone?
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Two of the three elements that occur in nature
that are the best for producing magnets.
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What are nickel, iron and cobalt?
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Magnets can be classified as natural or this?
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What is artificial?
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An alloy of aluminum, nickel and cobalt
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What is alnico?
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A common metal used in electrical wiring that is
NOT magnetic
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What is copper?
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All magnets have two of these
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What are poles?
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The area around a magnet
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What is a magnetic field?
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Like poles do this
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What is repel?
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The weakest area of a bar magnet
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What is the middle?
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Iron filings spread over a bar magnet will mostly
end up here
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What are the ends (poles)?
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When all of the atoms are lined up in the same
direction, this is formed
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What is a magnet?
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A group of lined-up atoms
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What is a domain?
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The metal usually found as the core of a
temporary magnet
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What is soft iron?
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The way to make a magnet without using another
magnet
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What is placing a magnetic substance into an
electrical field?
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Making a magnet by placing a magnetic substance
in a magnetic field
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What is induction?
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Type of magnet formed an electromagnet, it will
lose it magnetism when the current is turned off
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What is a temporary magnet?
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Metal most commonly used as the core of an
electromagnet
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What is soft iron?
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Three parts needed to make an electromagnet
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What are a soft iron core, insulating wire and a
voltage source
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Three ways to make an electromagnet stronger
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What are more turns of wire, a higher voltage
source and a bigger core?
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The school teacher who discovered that electric
current flowing through a wire produces an
electric current
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Who is Hans Oersted?
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An instrument for making electricty
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What is a generator?
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Used to make voltage from a generator either
higher or lower using different numbers of coils
of wire around opposite sides of a magnet
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What is a transformer?
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The part of a generator that is usually moving
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What is the wire coil?
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The scientist who discovered that magnetic energy
can be used to make electricity
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Who is Michael Faraday?
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Type of transformer with 5 turns on the primary
coil and 20 turns on the secondary coil
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What is a step-up transformer?