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PS Chapter 11

QuestionAnswer
The Ancient Greeks found lodestones
All magnetic objects have north and south poles
If you cut a magnet in half, you will have two smaller magnets
Even when a magnet is divided into microscopic pieces, each piece has north and south poles
Magnetism is a field force
A magnetic field can be modeled by using magnetic lines of force
Magnetic lines of force are modeled as ______ loops, both within the object and the _______ around it continuos; space
The direction of the field line is determined by the direction a tiny compass would point
Magnetic field lines point _____ from north magnetic poles, and _____ south magnetic poles away; toward
The distance between field lines indicates the strength
Opposite poles attract, like poles repel Law of Magnetism
Magnets ______ attract ferromagnetic materiels strongly
Magnets ______ attract paramagnetic materiels weakly
Large groups of dipoles automatically align to form regions called domains
In unmagnetized ferromagnetic materiels, the domains are oriented randomly
When an external magnet is applied the domains align to form a permanent magnet
The particles of a paramagnetic materiel _____ reside in domains, and are oriented ______ don't; randomly
Particle motion ________ with temperature increases
The temperature at which a ferromagnetic materiel will abruptly lose its ferromagnetic materiels The Curie temperature
A solenoid is a coil of wire that acts like a magnet
A solenoid with a bar magnet in the middle makes an electromagnet
Electric current produces a magnetic field
A magnetic field can produce an electric current
A magnetic field affects the motion of the electrical charges in a conductor
Created by: calebyeager
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