Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account



Static electricity

*A buildup of charges on an object
*Can be done by running and transferring protons or electrons to another object and creating a charge.
*Build up of charges, discharges, and releases electrons
*Discharges can be small
*Example is static cling--built up charges have a charge and cling to other objects

Static discharge

The loss of static electricity as electric charges transfer from one object to another

Electric circuit

A complete, unbroken path through which electric charges can flow


*The difference in electric potential energy between two places in a circuit
*Amount of force to push or move an electric current
*Measured in volt (V)
*Voltage source-a device to push an electric source

Electric current

*The continuous flow of electric charges through a material
*Rate which charges pass through a given point
*Takes path of least resistance, measured in Amps
*Example is an electrical device

Ohm's Law

*The law that states that resistance is equal to voltage divided by current
*Resistance=voltage (v)/current (amps or A)
**Increased voltage does not affect the resistance because if you double voltage, the current will double


*The measurement of how difficult it is for charges to flow through a material
*The greater resistance, the less current
*Measured in Ohm

Series circuit

*An electric charge with a single path-only one path for current to travel
*Any break causes bulb to go out
*Resistance increases

Parallel circuit

*An electrical circuit with multiple paths-has more than one path for current to travel
*If breaks doesn't mean won't work
*Resistance decreases


*A material where charges can easily flow
*Contain loosely bonded electrons that carry the charge and create an electric charge


*The unit for the rate of current.
*The number of amps describes the amount of charge flowing past a given point each second

Direct current

*Current consisting of charges that flow in only one direction in a circuit
*Known as DC current
*Examples are battery and motor

Alternating current

*Current that can flow in both directions
*Current consisting of charges that move back and forth in a current
*Known as AC

Example of static electricity

Balloon and hair

Example of static discharge


Examples of conductor

metals, water, acid


*Material where charges cannot easily flow
*Electrons bound tightly to atoms and do not move easily
*Used to stop the flow of charges

Examples of insulators

rubber, glass, sand, plastic, wood

equation for voltage


Units used for resistance


Ways to get an electric charge

1)Friction--the transfer of charge from one object to another by rubbing; electrons move from one object to another when rubbing
2)Conduction-The transfer of charge when electrons move from a charged object to another object by direct contact; objects touch another and electrons transfer; electrons transfer to the positive charged object
3)Induction-The transfer of electrons from one part of an object to another part, caused by the electric field of another object, without the two objects touching; electric field attracts or repels electrons

Example of voltage source

Battery, generator

Factors that determine resistance

1) Composition of Material used
Insulators-don't let electrons flow. Higher reistance so charges don't move easily so less current
Conductors-electrons flow. Lower resistance so charges move easily so more current
2) Length of Materials
Longer-more resistance so less current
Shorter-less resistance so more current
3) Diameter-
Thinner-more resistance so less current
Thicker-less resistance so more current
Hotter or higher temp-more resistance so less current
Cooler or lower temperature-less resistance so more current

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording