Unit 2 Quiz 1 que cards.

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Unit 2 Quiz 1 que cards.
2012-10-15 17:23:49

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  1. What is electricity?
    Electricity is a form of energy that results from the interactions of charged particles such as electrons and protons.
  2. What is Static charge?
    Static charge also known as static electricity is an electric charge that tends to stay on the surface rather than flowing away quickly.
  3. What does it mean to charge with fricton?
    A process in which different objects made from different materials rub against each other, producing a net static charge on each object.
  4. What is an Electrostatic series?
    This is a list of materials that have been arranged according to their ability to hold on to electrons.
  5. What is a insulator?
    • An insulator is a material in which electrons cannot move easily from one atom to an other.
    • 1 insulator is glass.
  6. What is a conducter?
    • A conducter is a material in which electrons can move easily between atoms.
    • 1 example is silver.
  7. What is a semi conducter?
    This is a material in which electrons can move fairly well between atoms.
  8. What does the word ground mean?
    Ground is 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. What is an ElectroScope?
    • This is a device for detecting the prescence of an electric charge.
    • One example is the pith ball electroscope.
  10. What does it mean to charge by contact?
    Charging by contact is when a object generates a net charge by touching it with a charged object.
  11. What are the Laws of electric charges?
    • These are laws that describe how two objects interact electrically when one or both are charged.
    • one example is postives and electrons attract.
  12. What is an electric field?
    This is a property of the space around a charged object where the effect of its charge can be felt by other objects.
  13.  What is Induced charge separation?
     Induced charge separation is the movement of electrons in a substance caused by the electric field of a nearby charged objects thats is not in direct conatact with the substance.
  14. What is a ion?
    An ion is  postivily charged atom or group of atoms.
  15. What is a lightning rod?
    A lightning rod is a metal sphere or point that is attached to the highest part of a building and is connected to the ground.
  16. What is an Electrostatic precipitator?
    • An Electrostatic precipitator is a type of cleaner that removes un wanted particles and liquid droplets froma flow of gas.
    • The diagram is in note 10.3
  17. What is a Van de Graaff generator?
    A Van de Graaff generator is a device that accumulates very large charges. The digram or a more detailed discription can be found innot 10.3.
  18. What is a Radiation dosimeter?
    A Radiation dosimeter is a small device that detects and measures exposer to radiation.