Electrostatics Definitions
Imparting a charge by bringing a charged object near, but not touching, a neutral object
induction
The two points on a magnet where its magnetism is concentrated
poles
Which of these are not a method of magnetization?
a. contact b. electricity
c. induction d. heat
heat
the general term for a modern device used to store electric charge
capacitor
early device used to store an electric charge
Leyden jar
this law states that the total charge is the same before and after an interaction
law of conservation of charge
This law states that like poles repel and unlike poles attract
law of magnetic poles
if the distance between two magnets is halved, what happens to the strength of the magnetic force between them?
a. halved b. remains the same
c. doubled d. quadrupled
quadrupled
the process of diverting unwanted electrical charge directly into the earth
grounding
"dry writing" that uses electric charges to reproduce images on paper
xerography
An object that has no overall electrical charge
neutral
a group of aligned atoms having a single magnetic field
domain
the most important cause of magnetism in magnetic materials
electron spin
the SI unit of charge
coulomb
a magnet made from a magnetically hard substance
permanent magnet
the study of the nature, behavior, and uses of static electricity and related phenomena
electrostatics
The name for the temperature above which a ferromagnetic material has no domains
Curie point
the force that changes the path of a charged particle moving through a magnetic field
deflecting force
simple device that detects small electric charges
electroscope
the amount by which a compass needle deviates from true north is the angle of...
declination
the region surrounding a charged object in which other objects are attracted or repelled by electric force
field
The extent to which a material can channel or absorb lines of magnetic flux
permeability
magnetic equator
compass that swings vertically to reveal the angle at which lines of flux enter the earth
dipping needle
the stream of charged particles that emanates from the sun
solar wind