Download Magnets Study Guide ckc

Physical Science
S3P2. Students will investigate magnets and how they affect other magnets and common objects.
a. Investigate to find common objects that are attracted to magnets.
b. Investigate how magnets attract and repel each other.
Main Concepts About Magnets
-The ends of a magnet are where the magnetic effect is the strongest. These are called
“poles.” Each magnet has 2 poles – 1 north, 1 south.
-Magnets attract things made of nickel, iron, cobalt, or steel (NICS).
-Magnets can attract magnetic objects through most materials.
-Magnets come in different sizes and strengths.
-Magnetite is a mineral containing iron and oxygen. It is attracted to magnets.
-Lodestone is a type of magnetite that is a natural magnet.
Electromagnet
Permanent
Magnets
Temporary
Magnets
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Vocabulary
magnet: an object that is attracted to nickel, iron, cobalt, and steel
magnetic field: invisible area around a magnet that has the power to
attract magnetic material
attract: to pull toward (poles that are different attract each other)
repel: to push away (poles that are alike repel each other)
magnetic force: the power of a magnet to push or pull other magnetic material
poles: one of two ends of a magnet; where a magnet’s force is the strongest
electromagnets: magnets that must have electricity to work
temporary magnet: an object that does not keep its magnetism
generator: a machine that uses a magnet to make electricity
CHALLENGE WORDS
neodymium magnet: an extremely strong and rare earth magnet
domains: small areas throughout a ferromagnetic material that line up to create
magnetism
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