Glossary terms chapter 10

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MaximFrumkin
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Glossary terms chapter 10
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2014-10-13 17:31:08
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Chapter 10 glossary terms
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  1. Electricity
    A form of energy that results from the interaction of charged  particles, such as electrons or protons
  2. Static charge (static electricity)
    An electric charge that tends to stay on the surface of the 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 care on each
  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 from one atom to another. 
    • E.g. metals like copper and iron
  7. Semiconductor
    • A material in which electrons can move fairly well between atoms
    • e.g. silicon
  8. Ground
    An object that can supply a large number of electrons to, or can remove a very large number of electrons from,  a charged object,  thus neutralizing the object
  9. Electroscope
    • A device for detecting the presence of an electric charge
    • e.g. metal leaf Electroscope and pith ball electroscope
  10. Charging by contact
    Generating a 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, without direct contact between the substance and the object
  14. Ion
    A charged atom or group of atoms
  15. Lightning rod
    A metal sphere or point, attached to the highest part of a building and connected to the ground
  16. Electrostatic precipitator
    A type of cleaner that removes unwanted particles and liquid deopletc from a flow of gas
  17. Van de Graaf generator
    A generator that accumulates very large charges 
  18. Radiation dosimeter
    A small device that detects and measures exposure to radiation

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