CONTENTS IO I2 14 16 18 Magnetism Inside a Magnet Hard and Soft Magnets Polarity Magnetic Fields Electromagnetism History of Magnetism Everyday Magnets Magnets in Electronics Magnets in Motion Magnets in Industry Magnets in Medicine Experiments to Try Glossary For More Information Index 20 22 24 26 28 30 31 32
MAGNETISM When you bring home an A plus paper where do you put it On the refrigerator of course You grab a magnet and the paper stays up for everyone to see But how does it stay up The answer is magnetism Magnets can be used to hold items in
Magnetism THINK ABOUT IT is a natural force Magnetism is a force of that can either nature or something that bring certain metal happens without any known objects together cause Can you think of any like a magnet and other forces of nature a refrigerator door or keep them apart Some rocks and metals contain this power naturally Magnetism is an invisible force it can be felt but not seen Scientists study magnets observing how they behave Magnets can be simple to understand how objects used to hold items on a refrigerator or they can be magnetism works parts of large complicated
