a field is a region of space surrounding an object that can cause another object to experience a force

ex: gravitational field, electric field a magnetic field is a 3-D region of

space surrounding a magnet that will exert a force on magnetic objects

magnets have 2 ends (poles) unlike poles attract each other while

like poles repel each other the force of attraction or repulsion

increases as the magnets get closer to one another

earth has a magnetic field that exists both inside and surrounding it

when a magnet is free to rotate it will align itself with Earth’s magnetic field (compass)

magnetic fields exist in 3 dimensions surrounding a magnet and are more intense at the poles

they are invisible, but can be represented with field lines point from north to south pole outside a

magnet, and from south to north pole inside a magnet

never cross one another are close together where the magnetic field is

stronger

a compass can be used to map the direction of the field lines around a magnet

the needle will align itself along the direction of the field

when opposite poles of two magnets are brought near each other they attract

this happens because of the way the magnetic fields interact

when two like magnetic poles are brought near each other they repel

this also happens because of the way the fields interact

unlike poles attract

like poles repel

the bottom of the train is attracted upwards toward the bottom of the track

the guidance magnet keeps the train along a specific path

floats above track to reduce friction/increase speed

uses magnetic fields for levitation and forward motion

uses incredibly strong magnetic fields to produce very detailed images of the inside of the human body

magnets electric motors electric bells computer hard drive northern lights animal migration navigation

magnetic fields cause forces on objects that can be affected by magnets

magnetic fields are three-dimensional magnetic forces increase as magnetic

objects get closer to each other magnetic fields cause attraction between

unlike poles and repulsion between like poles magnetic field lines represent what a

magnetic field looks like around a magnetic object

these lines point from north to south outside the magnet and south to north inside

the lines never cross one another the lines are close together where the field is

stronger