Intro to Basics
What are materials called that have free electrons and do allow the flow of current?
Conductors
What is energy produced as a result of the flow of electrons from atom to atom?
Electrical Current
What is the force called that causes electrons to move in an electrical circuit?
Electromotive force
What is the force that opposes electric force?
Resistance
What is the battery (EMF), wires (conductors) and a lightbulb or other component to create a continuous flow of electrons?
Electrical circuit
What are material called that do not have free electrons and do not allow the flow of current?
Insulators
What is the unit of measure for flow of electrons?
Name 3 sources of emf
battery, generators, photovoltaic cells
What is the unit of measure for the amount of electrical resistance?
ohm
What is all the components of a circuit are in line with each other, and there is only one path for the flow of electricity?
Series Circuit
Name 4 common metallic conductors
silver, gold, aluminum, copper
What is the charge carried by 6.25 X 10 /\ 18 electrons?
Coloumb
What is unit used to measures EMF?
Volts
What is components placed in an electrical circuit to control the amount of resistance in a circuit?
Resistors
What is used in electrical circuits to prevent short circuits?
fuses or circuit breakers
What is four common materials that are insulators?
wood , plastic ,rubber, glass
What is the intrument used to measure the amount of amps flowing in an electrical circuit?
Ammeter
What is the symbol used for the unit of measure for Volts?
V
What is Ohm's Law in a mathematical equation?
I=V/R
What isa circuit called whenever two or more components are connected between the same two points?
parallel circuit
What is the movement of electrons between atoms?
Electricity
What is the symbol used for the unit of measure of current?
A
What is the definition of a volt?
electrostatic difference between two points when one joule of energy is used to move one coulomb of charge
What is the symbol for Ohm?
upside down horseshoe
What is produced by batteries, fuel cells and solar cells
Direct Current or DC