E.P. I Ch 1 Self Review and knowledge check

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Author:
cdeelah
ID:
128173
Filename:
E.P. I Ch 1 Self Review and knowledge check
Updated:
2012-01-16 16:49:50
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power self review questions
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Self Review and knowledge check Chapter 1
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  1. Is that charge of an electron positive or negative?
    Negative
  2. Is the charge of a proton positive or negative?
    Positive
  3. Is it true or false that the neutral condition means equal positive and negative charges?
    True
  4. Which have more free electrons: Conductors or insulators?
    Conductors
  5. Which is the best conductor: Silver, carbon, or iron?
    Silver
  6. Which is a semiconductor: Copper, Silicon, or Neon?
    Silicon
  7. An element with 14 protons and 14 electrons has what atomic number?
    14
  8. What is the electron valence of an element with an atomic number of 3?
    1
  9. Except for H and He, what is the goal of valence for all atoms?
    8 valence electrons
  10. If 25 x 10^18 electrons are added to a neutral dielectric, what is the charge stored in coulombs?
    -Q = 4C
  11. How many eletrn charges are there in the practical unit of 1 Coulomb?
    6.25 x 10^18
  12. How much is the charge in coulombs for a surplus of 18.75 x 10^18
    -Q = 3C
  13. Do opposite electric charges attract or repel each other?
    Attract
  14. what does a volt do? (my question)
    It moves an electric charge
  15. What is the ouput voltage of a battery that expends 15 J of energy in moving 5 C of charge?
    V=3V

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