Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

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.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

Ch 1 -- Electricity

Vocabulary for Ch 1 Introduction to Electricity

parallel circuit type of circuit in which different loads are on seperate branches...electrons have different paths
insulator a material in which charges (electrons) cannot easily move
electric current the rate in which charges (electrons) move past a given point on a water flowing in a river
Law of Electric Charges the law that states opposite charges attract and like charges repel
loads devices that uses electrical energy to do work...they change electricity into other forms of energy
thermocouple a device that changes heat energy into electrical energy
battery a device made up of many electrical cells which move electrons because of chemical reactions
electric circuit a complete, closed path for electrons to travel through
resistance the opposition to the flow of electric slows down electrons
switch a device that opens and closes a circuit
electric cell a device that changes chemical energy into electrical energy
electric discharge the loss of static electricity as charges (electrons) move off of an object
photocell a device that changes light energy into electrical energy
conduction the transfer of electrons from one object to another by direct contact
induction the rearrangement of electrons in one object without the direct contact of a charged bringing a charged balloon near a wall or the hairs on your arm
force a charged object exerts an electric ______ on another charged object
electric power the rate that electric energy is changed into work....current X voltage...measured in watts or kilowatts
conductor a material in which charges (electrons) can move more easily
static electricity the buildup of electric charges on an object
voltage acts like a "hill" because there is a difference in energy between two points....makes the electrons "want to" flow
series circuit a type of circuit in which all of the parts are connected in one loop
Ohm's law Voltage (V) = Current (I) x Resistance (R)
breakers and fuses stop the flow of electrons to keep our houses safe...they stop possible electrical fires when current gets too high
electric meter a tool used to measure the amount of electrical energy used in a house
as voltage goes up, current goes ________ up
as resistance goes up, current goes _________ down
AC Alternating Current (electrons move forwards and backwards in wires plugged into the wall)
DC Direct Current (electrons move in 'one direction' :} in wires plugged into a battery)
lightning rods bring the electricity of lightning safely down to the ground from a rod on the roof through wires on the structure to a pole in the ground
electrons the negatively charged particles on the outer edge of atoms...referred to as "charges" in this chapter
Created by: browngdavid
Popular Physics sets




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:

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:
restart all cards