1. Electricity Riley Ford, Catherine Cole, Elizabeth Miller, Maggie O’Brien

2. What is Electricity?  Electricity is a form of energy that is created by the flow of electrons

3. Electricity from power plant to customer

4. Power Plant to Customer  First electricity is generated at a power plant, wind farm, or generating station  Voltage of electricity is increased at the voltage station  Electricity is transferred across transmission lines  The voltage of the electricity is decreased at the local transformer station  Electricity is carried to your neighborhood on power lines  Before entering your home the voltage is decreased on the pole transformer on your house

5. How is electricity created?  In an atom there are protons and electrons, normally the number of negatively charged electrons is equal to the number of positively charged protons  If an atom looses a proton or electron an electric current is produced

6. Words to know  Electricity: a form of energy resulting from the existence of charged particles.  Circuit breaker: an automatic device for stopping the flow of current in an electric as safety measure.  Fuse: a safety device consisting of a thin strip of metal that melts and breaks an electric circuit if the current exceeds a safe level.

7. Words to know  Surge protector: electrical device inserted in a power line to protect equipment from sudden fluctuations in current.  Solar flare: a brief eruption of intense high- energy radiation from the sun’s surface.  Kilowatt: is the units for electricity (1,000 watts)  Static Electricity: the build build up of electrical charge that remains on an object

8. Words to Know  Charged particles: particles that conduct electricity  Atoms: the smallest form of a chemical element, all matter is made up of atoms  Circuit: a loop that conducts electricity in which all components are liked together  Terminal: place for attachment for wires to battery

9. Parallel Circuit  Parallel Circuit's: an element off an electrical circuit when components are connected and parallel so that the same voltage is applied to each part of the circuit

10. Circuit Breakers, Fuses and Surge Protectors  Surge protectors allow power to be removed without interrupting power of other devices  If a component fails inside the protector only the protectors breaker will fail not the other loads  Circuit breakers protect an electrical current form damage or over load  Fuses are used in cars, computers and most major appliances  They protect the wires transmitting an electrical current

11. Solar Flare Effect on Electric Transmission

12. Solar Flare Effect on Electricity  http://www.youtube.com/watch?v=9cNf8 xK67JA http://www.youtube.com/watch?v=9cNf8 xK67JA

13. Electric Meters  A device that measures the amount of electric energy consumed by a business or residence; even an electric powered device

14. Cost  You are billed every month for electricity based on how much you use  Fuel costs, capital costs, and other factors such as waste are taken in account in someone’s electric bill

15. Series vs. Parallel Circuits  Two of the simplest components in an electrical circuit  A series circuit is composed and connected in a series  However, one connected completely in parallel is called a parallel circuit

16. Alternating Current Vs. Direct Current  Alternating  Safe to transfer over long city distances  Electrons change directions  Reverses direction when flowing in a circuit  Direct  Voltage of current can not travel long distances until it starts to loose energy  Electrons move move consistently in a forward motion  Flows in one direction in a current

17. Batteries In electricity, a battery is a device consisting of one or more electrochemical cells that convert stored chemical energy onto electrical energy electricity. Batteries have become a common power source for many household and industrial appliances. There are primary batteries which are only to be used once and secondary batteries which can be recharged.

18. Infinity Battery Add

19. Quick Review  Electricity is created by the flow of ____  _____ is the units for electricity (1,000 watts)  How often are you billed for electricity? Electrons Kilowatts Every Month

20. Quick Review  Where is electricity generated?  What is an electric meter used for?  True or False? If an atom looses a proton or electron an electric current is produced? power plant, wind farm, or generating station To measure the amount of electricity used by a business or residence True