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

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

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

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

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

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

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

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

    this power source possesses volts

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

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

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

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

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

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

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  15. non-ohmic
    not following ohm's law

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  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.

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  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.

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

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

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

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

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

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  23. secondary cell
    a cell that can be recharged

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  24. primary cell
    a cell that be used only once

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  25. wet cell
    a cell that contains liquid electrolyte

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

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  27. electrolyte
    a solution or paste that conducts charge

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

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  29. battery
    a connection of two or more cells

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  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

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

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Author:
Aidin
ID:
242732
Filename:
Electricity glossary terms chapter 11 que cards
Updated:
2013-10-25 01:57:40
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science electricity
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Electricity glossary terms chapter 11 que cards
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