Science electricity que cards #1

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  1. Electricity
    • a form of energy that results from the interaction of charged articles, such as electrons or protons
  2. static charge (static electricity)
    an electric charge that tends to stay on the surface of an object, rather than flowing away quickly

  3. charging by friction
    a process in which objects made from different materials rub against each other, producing a net static charge on each object

  4. electrostatic series
    • a list of materials that have been arranged according to their ability to hold on to electrons
  5. insulator
    a material in which electrons cannot move easily from one atom to another

  6. conductor
    • a material in which electrons can move easily between atoms
  7. semiconductor
    • a material in which electrons can move fairly well between atoms
  8. ground
    • an object that can supply a very large number of electrons to, or can remove a very large number of electrons from, a charged object, thus neutralizing that object
  9. electroscope
    • a device for detecting the presence of an electric charge
  10. charging by contact
    • generating a net charge on a neutral object by touching it with a charged object
  11. laws of electric charges
    • laws that describe how two objects interact electrically when one or both are charged
  12. electric field
    • a property of the space around a charged object, where the effect of its charge can be felt by other objects
  13. induced charge seperation
    • the movement ¬†of electrons in a substance, caused by the electric field of a nearby charged object that is not in direct contact with the substance
  14. ion
    • a positively or negatively charged atom or group of atoms
  15. lighting rod
    • a metal sphere or point that is attached to the highest part of a building and connected to ground
  16. electrostatic precipitator
    • a type of cleaner that removes unwanted particles and liquid droplets from a flow of gas
  17. Van De Graaff generator
    • a device that accumulates very large charges
  18. radiation dosimeter
    • a small device that detects and measures exposure to radiation

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Science electricity que cards #1
2013-10-14 17:32:18
science electricity

Science electricity que cards #1
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