Save
or

or

taken

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

focusNode
Didn't know it?
click below

Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size     Small Size show me how

# Basic Electricity

### Electricity Basics

TermDefinition
Voltage Source A two-terminal device which can maintain a fixed voltage - such as a battery or wall outlet.
Load Anything which consumes electrical energy, such as lights, transformers, heaters and electric motors.
Insulator Any material where electric current does not flow freely. Materials, such as glass, rubber, air, and many plastics have a relatively high resistance - protect equipment and life from electric shock.
Conductor Any material where electric current can flow freely, with a relatively low resistance - examples are copper and aluminum wire.
Voltage An electromotive force or "pressure" that causes electrons to flow and can be compared to water pressure which causes water to flow in a pipe. Measured in volts.
Current The flow of an electric charge through a conductor - can be compared to the flow of water in a pipe. Measured in amperes.
Resistance The opposition to the passage of an electric current - can be compared to the friction experienced by water when flowing through a pipe. Measured in ohms.
Series Circuit A circuit in which there is only one path for electricity to flow. All of the current in the circuit must flow through all of the loads. Remove one light and rest of the lights go out!!
Parallel Circuit A circuit in which there are multiple paths for electricity to flow. Remove one light and the rest of the lights stay on!!
Electron A tiny particle which rotates around the nucleus of an atom. It has a negative charge of electricity.
Direct Current (DC) An electric current that flows in only one direction.
Alternating Current (AC) An electric current that reverses its direction many times a second at regular intervals.
Circuit A closed path in which electrons from a voltage or current source flow - can be in series, parallel, or in any combination of the two.
Generator A device which converts mechanical energy into electrical energy.
Electricity The flow of electrons.
Combination Series-Parallel Circuit A circuit that has a "combination" of series and parallel paths for the electricity to flow. Most circuits are these.
Created by: poliszuk

Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

• SPACEBAR - flip the current card
• LEFT ARROW - move card to the Don't know pile
• RIGHT ARROW - move card to Know pile
• BACKSPACE - undo the previous action

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
 "Know" box contains: Time elapsed: Retries:
restart all cards