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Science notes 1-4

on Electricity and Magnitism

QuestionAnswer
electricity a form of energy caused by moving electrons
protons carry a positive charge
electrons carry a negative charge
ion an atom with a positive or negative charge
The Law of electric charges like charges repel and opposite charges attract
static charge the buildup of electrons on an object
electric discharge the rapid movement of excess charge from one place to another
electric current a flow of electrons through a conductor
electric circuit a close conducting loop through electric currents continuously flow.
series circuit a circuit that has only one path for the electric currents to flow
parallel circuit a circuit that has more than one path for the electric current to flow
conductor a material that allows electrons to move through easy
Insulator a material in which electrons cannot move easily from place to place
voltage the measure of how electric energy an electron in a circuit can gain from a circuit
what is voltage measured in volts
battery a series of electrochemical cells connected together
electrolyte a substance that dissolves in water to form a conducting solution
direct current a current that only flows in one direction
oxidation the electric field forces the electrons to leave the negative terminal to move towards the positive battery terminal
ampere a measure of the number of electrons flowing in a circuit in a given amount of time
resistance opposes the flow of electrons in a circuit
4 factors that effect resistance length, width, material, and temperature
Ohms law current in a wire is equal to the voltage divided by the resistance
Created by: rlin
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