# 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

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

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.

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

 Author: Aidin ID: 242732 Card Set: Electricity glossary terms chapter 11 que cards Updated: 2013-10-25 01:57:40 Tags: science electricity Folders: Description: Electricity glossary terms chapter 11 que cards Show Answers: