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# Science ch8

### BC Science 9 chapter 8 Vocab

TermDefinition
amperes unit for measuring electric current
circuit diagrams a drawing using symbols to represent the different components of a circuit
electric circuit a complete pathway that lets electricity to flow
electric current the amount of charge passing a point in a conductor every second
electric load any device that transforms electricity into other energy
electric potential energy electric energy stored in a battery
electrical resistance ratio of change in electrical energy
electrochemical cells electrodes in electrolytes that convert chemical energy into batteries
electrodes two terminals in a battery or other electricity source
electrolyte substance that conducts on electrical current
energy the ability to do work
ohm the unit of measurement for electrical resistance
Ohm’s law the mathematical relationship comparing voltage, current, and resistance
potential difference the amount of electric potential energy per one coulomb of charge at one point in a circuit compared to the potential energy per coulomb of charge at another point in the circuit
resistance the property of any material that allows that slows down the flow of electrons
resistor an electrical component with a set amount of resistance that slows down curent
volt the unit of potential difference
voltage the amount of electric potential energy per one coulomb of charge at one point in a circuit compared to the potential energy per coulomb of charge at another point in the circuit
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