Magnets
What do magnets attract?
Certain metals like iron and steel.
How does an electromagnet work?
by electric current
What is a magnetic field?
space where the magnetic force acts.
What is natural magnet?
magnet can not be made by people
What everyday device uses an electromagnet?
A doorbell.
How can you tell where the magnetic field is strongest?
It is strongest at the poles of the magnet.
What is a magnet called that can turn on and off?
Electromagnet
What happens when you turn off an electromagnet?
It loses its magnetism
How do like poles behave?
They repel each other.
Name a material that is not attracted to magnets.
wood
Describe a use for electromagnets in engines.
to lift heavy matters
Name something that can be found in a magnetic field.
Metal objects
What are the two poles of a magnet?
north and south
when the current is .... the electromagnet is on, while when the current ... the electromagnet off.
on - off
How do magnetic poles interact?
Opposite poles attract, like poles repel.