Magnets
_____________ are regions of a magnet that produce magnetic force
Poles
Earth is a giant ____________ with a north and south ___________
Magnet poles
________________is a force of attraction or repulsion caused by movement of charged particles
Magnetism
What do you call something electric currents can move through easy
conductor
Electric charges can be __________ but magnet poles cant
isolated
If a magnet is broken in half both halves become
Equally strong magnets
What are the imaginary magnetic lines under earths surface called
Field lines
What states that opposite poles will attract and same poles will repel
Fundamental rule
When something becomes magnetized all the electrons will flow __________________
in the same direction
What king of materials are typically ferromagnetic
Metal
How do you make a permanent magnet
Putting on a strong magnetic field
The poles of a SUSPENDED magnet will align itself with the poles of _____________
Earth
_______________ is the space around a magnet where it can exert force.
What was Teslas first name
Nikoli
What do you call a magnet that requires electricity to turn on its force field
Electromagnet
Magnets at rest consist of charges that are
In motion
If the magnetic domains of a material can align and become a magnet it is called
Ferromagnetic
The strength of a magnetic field is measured in
Tesla
What happened on earth 1 million years ago
Magnetic field shut off
The electrons are always pushed away from the _________________ and toward the _____________ in a magnet
North south
What is the 2 ways to weaken a magnet
Dropping heating
What is the difference between earths magnetic poles and its geographic poles
Declination
________________ is clusters of aligned atoms
Magnetic domain
______________ is the flow of electric charges
current
When current is carried through a conductor the magnetic field produces a pattern of ______________________
Concentric circles