Download magnetism.

EARTH IS A MAGNET
MAGNETS ARE OBJECTS THET
ATTRACT IRON AND STEEL. THIS
FORCE OF ATTRACTION IS CALLED
MAGNETISM.
MAGNETS CAN BE NATURAL
OR ARTIFICILA. MAGNETITE IS
A NATURAL MAGNET. STEEL
MAGNETS ARE ARTIFICIAL.
ELECTROMAGNETS ARE ARTIFICIAL
MAGNETS.THEY NEED AN ELECTRIC
CURRECT TO WORK.
ELECTROMAGNETS ARE USED IN
MANY APPLIANCES SUCH AS
ELECTRIC BELLS AND TELEPHONES.
Electromagnets are very useful tools. They have the ability to gain a magnetic field with the
introduction of current and to lose it once the current ceases. We will be building a very
simple one that works with these principles. It is also a very cheap project, I had everything
needed to make it lying around my house.
For this project we will need:
One large nail
Around 5 feet of 16 gauge wire.
One D cell battery
Some electrical tape (optional)
All of this can be bought at a hardware store for under $4.
Tools:
Wire stripper
Pliers
THE FORCE OF MAGNETS
THE AREA AROUND MAGNET WHERE THEY EXERT
MAGNETIC FORCE IS CALLED A MAGNETIC FIELD.
ALL MAGNETS HAVE GREATER ATTRACTION
POWER IN TWO AREAS. THESE AREAS ARE
CALLED POLES. MAGNETS HEVE A NORTH POLE
AND A SOUTH POLE. WHEN WE PLACE TWO POLE
OF THE SAME TYPE CLOSE TOGETHER, THEY
REPEL EACH OTHER.