science chapter 20 Flashcards
any object that attracts the metal iron
magnet
a place on a magnet where the force it applies is the strongest
magnetic pole
The names of the two magnetic poles on all magnets
north pole and south pole
A force of attraction of repulsion between the poles of two magnets
magnetic force
An invisible magnetic field surrounds
all magnets, applying force on other magnets
magnetic fields represented by
magnetic field lines
what does assertion mean
forceful statement of fact or belief: to defend
Any material that is strongly attracted to a magnet
magnetic material
elements including iron, nickel, and cobalt, that have an especially strong attraction to magnets
Ferromagnetic elements
not all materials are magnetic, but
a magnetic field surrounds all materials
a region in a magnetic material in which the magnetic fields of the atoms all point in the same direction
magnetic domain
A magnet that quickly loses its magnetic field after being removed from a magnetic field
temporary magnet
A magnet that remains a magnet after being removed from another magnetic field
permanent magnet
a magnet created by wrapping a current-carrying wire around a ferromagnetic core
electromagnet
a special type of temporary magnet
electromagnet