Permanent and induced magnets Flashcards
What do all magnets have and produce ?
What is a magnetic field?
Poles ( north and south ), they all produce a magnetic field ( region where other magnets or magnetic materials experience a non contact force )
How do you show a magnetic field ?
by drawing a magnetic field.
Closer the lines are = stronger the magnetic field
Further from magnet = weaker the magnetic field
Where is the magnetic field the strongest?
When two poles of magnets are near eachother, what occurs?
at the poles.
Force of magnet and magnetic material is always attractive no matter the poles.
When two poles of magnets are near each other, they exert a force which is either repulsion or attraction.
Two same poles = repulsion
two opposite poles = attraction
How does a compass work
Inside a magnet there is always a tiny bar magnet in which north is always attracted to south of any magnet it is near
Compass points at direction where magnetic field is in.
You can move a compass around a magnet and trace the position of it to build an idea of what the magnetic field looks like.
What happens when a compass is not near a magnet ?
always points north due to the earth creating its own magnetic field which shows that the earths core is magnetic
Name the two types of magnets
Permanent magnet = produces it’s own magnetic field
Induced magnets = Magnetic materials become magnets which in magnetic field
Force between permanent magnet and induced magnet is always attractive . If you take away the magnetic field, induced magnets quickly lose their magnetisms and stop producing a magnetic field
