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BC Science 9 Ch8/9

BC Science 9 Chapter 8/9

Electrochemical cells connected together Battery
Convert chemical energy into electrical energy stored in charges Electrochemical cells
End points of a battery Terminals
Energy a moving object has Kinetic energy
Ability to do work Energy
Energy stored in an object Potential energy
Energy stored in a battery Electric potential energy
Amount of electric potential energy per coulomb of charge Potential difference
Potential difference Voltage
Unit of potential difference Volt
Terminals on a battery Electrodes
A fluid that conducts electricity Electrolyte
Pathway that allows electrons to flow Electric circuit
A device that transforms electrical energy into other forms of energy electric load
A wire through which electrons flow Conductor
A continuous flow of charge in a complete circuit Current electricity
Amount of charge flowing in a conductor every second Electric current
Unit of electric current Ampere
A device used to measure electric current Ammeter
Property that slows down the flow of electrons Resistance
The ratio of voltage to current Electrical resistance
Unit of electrical resistance Ohm
Mathematical relationship comparing V, I and R Ohm's Law
A component with a specific resistance Resistor
A device that measures resistance Ohmmeter
Circuit with only one path Series
Circuit with many paths Parallel
Rate of change in energy Power
Unit for measuring energy Joule
One joule of energy transformed in one second Watt
Rate of change in electrical energy Electrical power
Energy an electrical device consumes per second Power rating
Pt E
Created by: darrinaustin