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ch.32 vocab.
all vocab words
Question | Answer |
---|---|
The study of electrec charges at rest. | electrostatics |
Aforce tatl one charge exertson another. When the charges are the same sign, they repel;when the charges are opposite, they attract. | electrical forces |
The fundamental clectrical property to which the mutual attractions or repulsions between ewctrons or protons is attributed. | charge |
The principle that net clectric charge is neither created nor destroyed but is transferablefrom one material to another. | conservation of charge |
THe relationship among electrical force, charges, and distance:The electrical force between two charges varies directly as the product of the charges and inversely as the spuare of the distance between them. | Coulomb's law |
SI unit of charge. One coulonb is equal to the total charge of electrons. | coulomb |
Material, usually of metal, through which electric charge can flow. Good conductors of heat are generally good charge conductors. | conductor |
A material that is a poor conductor of electricity. | insulator |
Material that can be made to behave a either a conductor or an insulator of electricity. | semiconductor |
Term applied to electric charge that has been redestributed on an object because of the presence of a charged object nearby. | induced |
The charging of an object without direct contact, | induction |
allowing charges to move freely along a connection between a conductor and the ground. | grounding |
an atom or molecule in which the charges are aligned so that one side is slightly mor positive or negative than the opposite side. | electrically polarized |