4th grade ch. 13 sec. 3 what are magnetic fields
TRANSCRIPT
MAGNETISM–a force that acts on moving electric charge
and magnetic materials that are near a magnet
• Magnets have large amounts of lodestone, a magnetic mineral.
MAGNETIC FIELD–An invisible field around a magnet.
• The magnetic field goes out in all directions. • The shape of the magnetic field depends on
the shape of the magnet. • The field is strongest at the magnet’s ends or
poles