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Electricity
Physics Unit 13
Term | Definition |
---|---|
electric current | the flow of charged particles, usually electrons, inside a material that conducts electricity |
current | measured in Amperes (A) |
closed circuit | includes at least one continuous closed path of a conductor, such as a wire, allowing electric current to flow |
open circuit | a path in which the connection is broken in at least one place in the loop, preventing the flow of current |
voltage | measured in Volts (V) |
resistance | measured in Ohms (Ω) |
Ohm's Law | voltage is directly related to current and resistance |
conductor | offers little resistance to the flow of current |
insulator | a material with high resistance to the flow of current |
series circuit | has only one path that electric current can follow. |
parallel circuit | contains branches that provide more than one path for electric current to follow |
electrical power | measured in Watts |
electrostatics | the physics of lightning and charges at rest (static) |
Coulomb's Law | Electric force is directly related to charge and inversely related to the distance squared |
electric field | the organization of energy that carries the electric force between charges |
like charges | repel each other |
unlike charges | attract each other |
multimeter | a useful instrument that measures voltage, current, and resistance. |
charge | measured in Coulombs (C) |