Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
|
Volt |
The unit of pressure or force that causes electrons to move. |
|
|
Amp |
A measurement that shows the flow of electrons. |
|
|
Circuit |
The path in which electrons move. |
|
|
Current |
A stream of moving electrons. |
|
|
Direct Current [DC] |
When electrons move in only one direction. |
|
|
Alternating Current [AC] |
When electrons move rapidly back and forth in a circuit. Alternating the flow of electrons. |
|
|
Conductor |
Something that permits an easy flow of electrons. (ex: Metal) |
|
|
Insulator |
Something that allows little or no flow of electrons. (ex: Rubber) |
|
|
Resistance |
A substance that limits the amount of current that can run through it. (It usually depends on the thickness, composition, length, and temperature of the substance.) |
|
|
Ohm |
This is the unit of measurement for resistance. |
|
|
Rheostat |
A device that controls the amount of resistance in an electrical circuit. |
|
|
Series Circuit |
When the same current passes through all devises because there is only one path. |
|
|
Parallel Circuit |
When the current divides and forms paths that branch out. |
|
|
Fuse |
A devise that provides protection from current overload in a circuit. |
|
|
Breaker |
A electromagnetic switch that opens when the circuit overloads, breaking the flow of the current. |
|
|
Transformer |
This is a devise that changes the voltage of power lines so the current is safe for houses. |
|
|
Watt |
This is the unit of measure for electrical power. |
|
|
Short Circuit |
A sudden or large drop in resistance in the circuit that can lead to shocks, or even electrical fires. |
|
|
Complex Circuit |
A circuit that does not contain components of either parallel or series circuits. |
|
|
Kilowatt-Hour |
The measurement for the electric energy in the home. |
|
|
Open Circuit |
When a switch is turned off interrupting the flow of the electrical current. This stops the flow of the current moving though a circuit. |
|
|
Closed Circuit |
When a switch is turned on so that a current can flow through a devise without interruption. |
