electricity Flashcards
(17 cards)
electricity
a form of energy generated by charged particles
electrostatic force
the attraction and repulsion between charged particles
Static Electricity
When unbalanced charges build up on or within objects
electron discharge
electrons that have built up in objects or materials can slowly leak back into the air/ground
switch
an electrical component that can disconnect or connect the conducting path in a circuit
battery
a power supply that provides energy to electrons through chemical reactions
cell
an electrical power supply. converts stored chemical energy to electrical potential energy.
lamp
a device that gives off light
voltmeter
an instrument that measures the voltage of two points between two points of a circuit
ammeter
an instrument for measuring electric current, or the number of electrons that pass a fixed point per second (in amps/amperes)
resistor
a device that causes resistance to the path of an electrical circuit
variable resistor
a component that is used in electrical circuits to control the flow of current by changing the amount of resistance
motor
a device used to convert electrical energy into mechanical energy
voltage
the amount of electric potential energy carried by a group of electrons
coulomb
unit of charge of 6.25 x 10^18 electrons
current
the number of coulombs of electrons that pass a certain point in a circuit per second
ohms
Ω
unit of measurement for electrical resistance
