Science electricity que cards #1

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

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  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

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

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  6. conductor
    • a material in which electrons can move easily between atoms
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  7. semiconductor
    • a material in which electrons can move fairly well between atoms
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  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
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  9. electroscope
    • a device for detecting the presence of an electric charge
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  10. charging by contact
    • generating a net charge on a neutral object by touching it with a charged object
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  11. laws of electric charges
    • laws that describe how two objects interact electrically when one or both are charged
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  12. electric field
    • a property of the space around a charged object, where the effect of its charge can be felt by other objects
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  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
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  14. ion
    • a positively or negatively charged atom or group of atoms
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  15. lighting rod
    • a metal sphere or point that is attached to the highest part of a building and connected to ground
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  16. electrostatic precipitator
    • a type of cleaner that removes unwanted particles and liquid droplets from a flow of gas
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  17. Van De Graaff generator
    • a device that accumulates very large charges
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  18. radiation dosimeter
    • a small device that detects and measures exposure to radiation
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Card Set
Science electricity que cards #1
Science electricity que cards #1