Electricity Flashcards
(20 cards)
The accumulation of excess electric charge on an object.
Static electricity
Charge can be transferred from object to object, but it cannot be created or destroyed.
Law of conservation of Change
A material in which electrons are able to move easily.
Conductor
A material in which electrons are not able to move easily.
Insulator
The process of transferring charge by touching or rubbing.
Charging by Contact
The rearrangement of electrons on a neutral object caused by a near by changed object.
Charging by Induction
The net movement of electric charges in a single direction.
Electric Current
Related to the force that causes electric charge to flow.
Voltage Difference
A closed path that electric Current flows.
Circut
The tendency for a material to oppose flow of electrons, changing electrical energy into energy and light.
Resistance
The current in a circuit equals the voltage Difference divided by the resistance.
Ohm’s law
The current has only one lop to flow through.
Series Circuit
Contains two or more branches for current to go through.
Parallel Circuit
The rate at which electrical energy is converted to another form of energy.
Electric Power
Have a liquid pool of electrons that generate gas.
Wet-cell battery
Dry electrons that contain enough liquid for good electrical conducting.
Dry-cell battery
Protects against overflow of current in an electrical circuit.
Fuse
A switch that automatically interrupts the current of an overloaded electrical circuit.
Circuit breaker
A measure of the rate of energy transfer over unit of time.
Watts
The base unit of electrical current.
Amperes
