Electricity Test Flashcards
Dry cell
a cell that contains electrolytes, made of paste.
electrochemical cell
a cell that produces an electric current,
- by a chemical reaction involving chemical solutions
- metal compounds that are separated by a conducting solution
ENERGY STAR
identifies a product or meeting and exceeding standards for energy efficiency.
Generator
a device that uses energy of motion to create an electric current
lightning
large scale static discharge
attract
bring or draw closer
electrical circuit
At a minimum, a source, a load, and wires that allow current to flow
parallel circuit
a circuit that electric current can flow through multiple paths
series circuits
a circuit in which the electric current flows in the same direction along one path.
open circuit
a circuit with open gaps, or an open switch
closed circuit
a complete circuit
short circuit
A circuit with a resistance that is too low, making the current so high that it is dangerous
charging by friction
charging a material or object by rubbing it
electrical energy
the energy of charged particles
potential energy
stored energy
resistance, and the formula for finding it in series and parallel circuits.
shows the amount of current hindered by a load
series=
RT = R1 + R2
parallel=
1/RT = 1/R1 + 1/R2
Voltage, and the formula for finding it in series and parallel circuits.
an electromotive force or potential difference expressed in volts
series=
V
Current, and the formula for finding it in series and parallel circuits.
the flow of electricity in an electronic circuit, and the amount of electricity flowing through a circuit
series=
IT = I1 =I2
source
anything that supplied electrical energy.
electricity
form of energy, caused by movement of electrons
static electricity
the result of electrons (charges) building up on one object then moving
conductor
a material that allows electric flow
insulator
a material that prevents electric flow
charge
property of a substance that has lost or gained an electron
