Vocab
The difference in electrical potential energy between two places in a circuit
What is voltage?
A closed path that electric current flows
What is a circuit?
A device that can detect electrical charge
What is an electroscope?
This is a material in which electrons are not able to move easily.
What is an insulator?
Electricity involves the flow of these subatomic particles.
What are electrons?
The attraction or repulsion between electrical charges
What is electric force?
Most common type of circuit in your household's electrical system
What is a parallel circuit?
A machine that converts mechanical energy into electrical energy
What is a generator?
Elements that conduct an electric current under certain conditions
What is a semiconductor?
The accumulation of excess electrical charge.
What is static electricity?
The measure of how difficult it is for charges to flow
What is resistance?
A light bulb in a circuit is called the
What is a load?
A device used to measure current in a circuit
What is an ammeter?
The relationship between voltage difference, current, and resistance in a circuit
What is Ohm's Law?
Like charges _______, while opposite charges ______
What is repel and attract?
The idea that electric charges can be neither created nor destroyed
What is the law of conservation of charge?
Why would all the Christmas lights in a string go out if only one bulb's filament burned out?
What is because the lights are in a series circuit?
An automobile battery is this type of cell battery
What is a wet-cell or lead-acid battery?
The difference between alternating current (AC) and direct current (DC)
What is AC current periodically reverses direction while DC moves in a single direction?
The rearrangement of electrons on a neutral object caused by a nearby object
What is charging by induction?
The rate at which electrical energy is converted to another form of energy
What is electrical power?
This protects against the overheating of the wires in household circuits
What is a fuse or circuit breaker?
This device pulls electrons from the earth, moves them along a belt, and stores them on a large sphere.
What is a Van de Graaff generator?
The reason static electricity more predominant in the winter
What is cold air holds less moisture (lower humidity) and, therefore, has less water vapor in the air to conduct the charge away from you?
Connecting an object to Earth with a conductor
What is grounding?