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24 terms

Magnets grade 3

STUDY
PLAY
poles
either of two opposing forces or parts, such as in a magnet
field/force
active power, energy, or physical strength; push or a pull
repel
to drive away or force backwards
magnetism
a property of certain kinds of materials that causes them to attract iron or steel
lodestone
a rock that possesses magnetic properties and attracts iron; magnetite
magnet
an object that attracts iron and some other materials by virtue of a natural or inducted force
attract
to cause to come near, as by some special quality or action
North poles face ____________.
north
South poles face _____________.
south
Like poles __________.
repel
Unlike poles ____________.
attract
Magnetic forces attract only ____________ materials.
magnetic
Magnetic forces act at a __________.
distance
A coil of wire with an electric current flowing through it becomes a _________.
magnet
What metals are attracted to magnets?
iron and steel
The earth is like a giant magnet because the core is made of _____.
iron
What happens if two magnets have the same poles facing each other?
they repel
What happens if two magnets have opposite poles facing each other?
they attract
What direction does a compass needle always face?
north
Where were magnets first discovered?
Magnesia/Turkey
What is the name of a naturally occurring magnet
magnetite, lodestone
What can cause a magnet to lose its magnetic properties?
Dropping it over and over or heating it up
How is an electromagnt different from a regular magnet?
An electromagnet can turn on and off
Can we use a battery to make a magnet?
yes because they are electromagnets and make electricity