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8th Gr. Electricity

Prentice Hall Electricity & Magnetism Sec 3 &4

QuestionAnswer
energy stored in chemical compounds chemical energy
process in which substances change into new substances w/ different properties chemical reaction
device that transform chemical energy into electrical energy electrochemical cell
two different metals in an electrochemical cell electrodes
substance that conducts electric current electrolyte
part of electrode above the surface of the electrolyte terminal
combination of two or more electrochemical cells in a series battery
an electro chemical cell in which the electrolyte is liquid wet cell
electro chemical cell in which the electrolyte is paste dry cell
device used to measure current ammeter
diffeent parts of circuit are on separate branches parallel circuit
device used to measure voltage volt meter
rate at which energy is transformed from one form to another power
connection that allows current to take the path of least resistance short circuit
charge can flow from circuit to Earth grounded
reuseable safety switch that breaks the circuit when current is too high circuit breaker
Created by: Karen Copanic
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