# Shared Flashcard Set

## Details

Electricity and Magnetism
Chapter 7 and 8 vocabulary
24
Physics
05/05/2014

Term
 Static electricity
Definition
 Build-up of charge on an object through the transfer of electrons
Term
 Static charge
Definition
 Build-up of change on an object through the transfer of electrons
Term
 Static discharge
Definition
 A spark or lightning; quick and violent flow of electrons that removes the static electricity from an object
Term
 Charge
Definition
 Proton (positive charge) or electron (negative charge)
Term
 Law of conservation of charge
Definition
 Charge cannot be created or destroyed, only transferred through the movement of electrons
Term
 Proton
Definition
 Positive charge
Term
 Electron
Definition
 Negative charge
Term
 Neutron
Definition
 Neutral; not a charge
Term
 Electric field
Definition
 Field surrounding every charge; causes the electric force
Term
 Electric force
Definition
 Force between charges that is based on the amount of charge and the distance between charges; opposite charges attract and like charges repel
Term
 Magnetic force
Definition
 Force between magnetic poles; opposite poles attract and like poles repel
Term
 Magnetic field
Definition
 Field running from the north pole of a magnet to the south pole
Term
 Insulator
Definition
 Material in which electricity (and heat) flow slowly; example: rubber
Term
 Conductor
Definition
 Material in which electricity (and heat) flow quickly; example: metal
Term
 Charging by contact
Definition
 Transfer of electrons when two objects rub together; one object gains electrons and becomes negative and the other loses electrons and becomes positive
Term
 Charging by induction
Definition
 Rearranging the charge in a neutral object by bringing a charged object close to it
Term
 Electric current
Definition
 Overall movement of electrons in a single direction through a wire; unit of A
Term
 Resistance
Definition
 Tendency of a material to resist a flow of electrons; turns electricity into heat; unit of Ohms
Term
 Voltage
Definition
 Imbalance of charge in a battery or outlet that causes an electric current to flow; unit of V; also known as voltage difference, potential difference
Term
 Ohm's Law
Definition
 V = IR
Term
 Series circuit
Definition
 A circuit with one loop for current to follow; all resistors are added together for total resistance; current is equal the whole way through
Term
 Parallel circuit
Definition
 Circuit with two or more branches for electricity to follow; resistors are not added; the voltage difference is the same for each branch
Term
 Electromagnetism
Definition
 Electric currents cause magnetic fields and moving magnets induces electric currents
Term
 Fuse
Definition
 Protects a circuit from too much electric current
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