Electricity Chapter 11

  1. Electric circuit
    • a closed path which electrons that are powered by an energy source can flow.
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  2. Voltaic cell
    • a source of energy that generates current by chemical reactions involving two different metals or metal compounds by separated by a conducting solution.
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  3. Battery
    • a connection of two or more cells
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  4. Electrode
    one of two metal terminals in a cell or battery
  5. Electrolyte
    • a solution or paste that conducts charge
    • i.e dry cells have a paste electrolyte
  6. Dry cell
    • A cell that contains an electrolyte made out of paste
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  7. Wet cell
    • a cell that contains a liquid electrolyte
    • i.e. car battery
  8. Primary cell
    • a cell that can only be used once
    • i.e. AAA battery, AA battery
  9. Secondary cell
    • A cell that can be recharged
    • i.e. car batteries, rechargeable batteries
  10. Fuel cell
    a cell that generates electricity through chemical reactions that is stored outside the cell
  11. Solar cell
    • a cell that converts sunlight into electrical energy
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  12. Terminal
    a position on a cell that must be connected to other components to form a circuit
  13. Switch
    • a control device that  can complete a circuit to which it is connected
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  14. Open circuit
    • a circuit that contains a gap or break
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  15. Electric current
    A measure of the number of charged particles that pass a point in an electric fieldMeasured by an ammeterUnit is Amperes or Amps
  16. Coulomb (C)
    the quantity of charge that is equal to the charge of 6.25 x 10^18
  17. Ampere (A)
    • It is the unit of electric current 
    • equivalent to 1 coulomb per second
  18. Electrical resistance
    • The property if a substance that hinders electric current and converts electrical energy to other forms of energy
    • i.e incandescent light bulbs have a lot of heat out because of resistance.
  19. Resistor
    a device used in an electric circuit to decrease the current through a component by a specific amount.
  20. Load
    • a resistor or any device that transforms electrical energy into heat, motion, sound, or light.
    • i.e. a light bulb would be a load that transforms electrical energy to light and heat energy.
  21. Potential difference (voltage)
    The difference between the electric potential energy per unit of charge at two points on a circuit
  22. Volt
    the unit for potential difference equivalent to one joule per coulomb.
  23. Circuit diagram
    • a diagram that uses standard symbols that represent the components in an electric circuit and their connections
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  24. Series circuit
    • a circuit in which there is only one path along which electrons can flow.
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  25. Parallel circuit
    • a circuit in which there is more that one path along which electrons can flow
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  26. Ohm’s law
    • The ratio of potential difference to current is a constant called resistance.
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  27. Ohm (Ω)
    the unit for resistance and is equivalent to one volt per ampere (v/a)
  28. Superconductor
    a conductor in which electrical charge can flow with no resistance
  29. Non-ohmic
    Something that doesn't follow ohm's law
  30. Loads in Series
  31. Loads in Parallel
Author
HuckKim
ID
313846
Card Set
Electricity Chapter 11
Description
Ms. Day's Gr.9 science class cue cards
Updated