Chapter 10 Glossary Terms

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Author:
Miguel_Balbon
ID:
285705
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Chapter 10 Glossary Terms
Updated:
2014-10-13 13:45:07
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Science Glossary Terms
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Science
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Chapter 10 Science 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
    • e.g. (forms of electricity) Lightning, batteries
  2. Static Charge (Static
    Electricity)
    • An electric charge that tends to stay on the surface of an object rather than flowing away quickly
    • Refer to charging by friction.
  3. Charging By Friction
    • A process in which objects made from different materials rub against each other, producing a new static charge on each
    • e.g. Clothes in a dryer rubbing, rubbing balloon on sweater
  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
    • e.g. glass, wood, rubber
  6. Conductor
    • A material in which electrons can move easily between atoms
    • e.g. copper, silver, nickel (metals)
  7. Semiconductor
    • A material in which electrons can move fairly well between atoms.
    • e.g. silicon, diamond
  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 the object
    • e.g. human fingers
  9. Electroscope
    • A device for detecting the presence of an electric charge
    • e.g. Metal leaf electroscope, pith ball electroscope
  10. Charging By Contact
    • Generating a charge on a neutral object by touching it with a charged object
    • e.g. Contact between a negatively charged rod, and a neutral pith ball
  11. Law of Electric Charges
    • Laws that describe how two objects interact electrically when one or both are charged
    • e.g. Like charges repel, Opposite charges attract, Charged and neutral objects attract each other
  12. Electric Field
    • A property of the space around a changed object, where the effect of its charge can be felt by other objects.
    • Objects with greater net charges have stronger electric fields
  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
    • Thick, insulated copper wire connects the lightning rod to a metal plate or bare metal cable in the ground.
  16. Electrostatic Precipitator
    • A type of cleaner that removes unwanted particles and liquid droplets from a flow of gas
    • Reduces pollution and smokestacks
  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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