Electricity glossary terms chapter 11 que cards

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  1. electric current
    a measure of the number of charged particles that pass by a point in an electric circuit each second

  2. Coulomb
    the quantity of charge that is equal to the charge of 6.25 X 1018 electrons

  3. Ampere
    the unit of current, equivalent to one coulomb per second

  4. electrical resistance
    the property of a substance that hinders electric current and converts electrical energy into other forms of energy

  5. resistor
    a device used in an electric circuit to decrease the current through a component by a specific amount

  6. load
    a resistor or any other device that transforms electrical energy into heat, motion, sound, or light

  7. potential difference (voltage)
    the difference the electrical potential energy per unit of charge at two points in a circuit

  8. volt
    the unit for potential difference equivalent to one joule per coulomb

    this power source possesses volts

  9. circuit diagram
    a diagram that uses standard symbols to represent the components in an electric circuit and their connections

  10. series circuit
    a circuit in which there is only one path along which electrons can flow

  11. parallel circuit
    a circuit in which there is more than one path along which electrons can flow

  12. ohm's law
    the ratio of potential difference to current is a constant called resistance

  13. Ohm (Ω)
    the unit for resistance equivalent to one volt per ampere

  14. superconductor
    a material through which electric charge can flow with no resistance

  15. non-ohmic
    not following ohm's law

  16. loads in series
    loads in series are many different loads that are placed in a series circuit which decrease the overall potential difference but the current stays the same.

  17. loads in parallel
    loads in parallel are loads that are  placed on different paths which makes the current split up but the potential difference stays the same.

  18. open circuit
    a circuit that contains a gap or break

  19. switch
    a switch device that can complete or break the circuit to which it is connected

  20. terminal
    a position on a cell that must be connected to other components to form a circuit.

  21. solar cell
    a cell that converts sunlight into electrical energy

  22. fuel cell
    a cell that generates electricity through the chemical reactions of fuel that is stored outside the cell

  23. secondary cell
    a cell that can be recharged

  24. primary cell
    a cell that be used only once

  25. wet cell
    a cell that contains liquid electrolyte

  26. dry cell
    a cell that contains an electrolyte made of a paste

  27. electrolyte
    a solution or paste that conducts charge

  28. electrode
    one of two metal terminals in a cell or battery

  29. battery
    a connection of two or more cells

  30. voltaic cell
    a source of energy that generates an electric current by chemical reactions involving two different metals or metal compounds separated by a conducting solution

  31. electric circuit
    a closed path along which electrons that are powered by an energy source can flow

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Electricity glossary terms chapter 11 que cards
2013-10-25 01:57:40
science electricity

Electricity glossary terms chapter 11 que cards
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