electricity chapter 11

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  1. electric circuit
    • a complete circle of wires that electricity can flow through
    • used in electronics
  2. voltaic cell
    • a device used to create current
    • also known as a cell
    • wet or dry
    • most batteries are cells
  3. battery
    • a lot of cells used simultaneously to create more potential difference
    • eg. car battery
  4. electrode
    • a conductor used to create electric current
    • half a cell
    • usually made of things like copper, silver
  5. electrolyte
    • a metal that conducts electricity really well
    • eg. copper, gold, silver
  6. dry cell
    • a voltaic cell that uses a paste instead of liquid in between electrodes
    • most common cells are dry
  7. wet cell
    • a cell that uses liquid in between electrodes
    • eg. car batteries
  8. primary cell
    • a one time use cell
    • most common batteries are these
    • eg. AAA, AA, C, D
  9. secondary cell
    • a cell that can be recharged
    • eg. phone batteries, car batteries
  10. fuel cell
    • a cell that creates electricity from a fuel source not directly in the cell
    • hydrogen fuel cells
  11. solar cell
    • a cell that uses solar energy to create electricity
    • used in solar panels
  12. terminal
    • a side of a cell
    • positive or negative
    • negative flows to positive
  13. switch
    • a device that can turn on or off the current
    • always shown in open position
  14. open circuit
    • an incomplete circuit
    • no charge going through it
    • switches usually control this
  15. electric current
    • electricity flowing through a circuit
    • used to power electronics
  16. coulomb
    • used to measure charge
    • equal to 6.24*1018 electrons
  17. ampere
    • equal to one coulomb of charge per second
    • measures current
  18. electrical resistance
    the amount of potential difference removed from a current by a load
  19. resistor
    • a device specifically for electrical resistance
    • zig zag line
  20. load
    • something that transforms electrical energy into other forms of energy
    • eg. light bulb
  21. potential difference
    • how much energy an amount of charge has
    • measured in joules per coulomb
  22. volt
    • measured in joules per coulomb
    • measures potential difference
  23. circuit diagram
    • a simple drawing of a circuit for non-artists
    • wires=straight lines
  24. series circuit
    • a circuit with one path
    • gr. 6 levelĀ 
    • voltage adds up, current never changes
  25. parallel circuit
    • multiple paths
    • voltage never changes, current adds up
  26. ohm's law
    • V=IR
    • current times resistance equals potential difference
    • really useful!
  27. ohm
    • equal to 1 volt per amp
    • measures resistance
  28. superconductor
    • a conductor that uses cold to make it a perfect conductor
    • used in supermagnets and particle accelerators
    • liquid hydrogen=keeping the cool
  29. non-ohmic
    • something that doesn't follow ohm's law
    • lightbulbs are somehow examples
  30. loads in series
    • self-explanatory
    • split voltage between them
  31. loads in parallel
    • self explanatory
    • splits current between paths
Card Set:
electricity chapter 11
2013-10-24 15:35:42
electricity chapter

glossary terms for chapter 11
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