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47 Matching questions

  1. Field Force
  2. neutral
  3. attractive or repulsive
  4. positive charge to negative charge
  5. Direction of field
  6. the outside of the material
  7. Principle of Superposition
  8. Grounded
  9. resultant force
  10. positive and negative
  11. contact
  12. Ions
  13. zero
  14. Electric field
  15. Semiconductors
  16. test charge (+)
  17. Electrical Insulators
  18. Polarization
  19. gravitational force
  20. stronger charge
  21. electrons
  22. irregularly shaped objects
  23. e
  24. outward
  25. attract
  26. Charging by Contact
  27. Electrical Conductors
  28. repel
  29. inward
  30. (k = 8.9875 x 109 Nm2/C2)
  31. shifting of charge
  32. material's surface
  33. Coulomb (C)
  34. vector (direction)
  35. Coulomb's Law
  36. conductors
  37. Electric Dipole
  38. conductor - electrostatic equilibrium
  39. Superconductors
  40. transferred
  41. qo
  42. q
  43. dry
  44. greater
  45. quantized
  46. N/C
  47. Charging by Induction
  1. a materials that do not allow charge to flow through them (glass, plastic, rubber, silk)
  2. b materials that allow charges to flow easily from them (most metals)
  3. c E is a
  4. d Lines closer together =
  5. e Only ____ can become charged by induction
  6. f The _____ within an insulator can make its surface act like a charged object
  7. g is called Coulomb's Constant
  8. h is the small, positive test charge
  9. i area around a charge where the charge can be "felt" by another object
  10. j 1 proton balances 1 electron and the net charge is zero
  11. k When the Field is negatively charged, the direction is
  12. l Electric field is____ inside the conductor
  13. m Charges accumulate at points for
  14. n A neutral conductor is brought near another charged object, then the conductor is grounded - no touching necessary
  15. o Electric force is much stronger than
  16. p Like charges
  17. q is used to detect the presence of an electric field
  18. r Charges cannot be created or destroyed, they can only be
  19. s is the charge of one electron (-1.60 x 10-19 Coulombs)
  20. t variable for charge
  21. u Electric field is perpendicular to the
  22. v force between two objects that are not in contact with each other
  23. w two equal in strength, but opposite charges - field lines are identical and turn away from each other
  24. x Electric Field units are
  25. y Millikan discovered that a charged object's charge is always a multiple of a fundamental charge, e - called...
  26. z F = (kq1q2)/r2
  27. aa One noticed static charges more on _____ days because there is not moisture in the air to "connect" the charges
  28. ab Both insulators and conductors can be charged by
  29. ac shifting of charge within an atom
  30. ad When the Field is positively charged, the direction is
  31. ae Opposite charges
  32. af rubbing two materials together - one object rubs the electrons off the other, making it positively charged
  33. ag Two types of charges:
  34. ah Lines drawn from
  35. ai No net motion of the charges in a
  36. aj Charges reside only on
  37. ak Like any other force, the vector sum of all charge forces acting on an object is called the
  38. al The closer two charges are, the____ the force of attraction or repulsion between them
  39. am conductor connected to the Earth by a conducting wire or copper pipe
  40. an SI unit for charge is the
  41. ao Electric forces can be either
  42. ap move between material rather than protons
  43. aq normally insulators, but adding specific atoms as impurities can turn them into conductors (silicon, germanium - used a lot in electronics)
  44. ar is the direction of the force on the positive test charge
  45. as zero electrical resistance when below a certain temperature - can conduct electricity without heating up
  46. at If charges are not linear, you must find the x- and y- components and then add the x-components and y-components and use the Pythagorean Theorem to find the resultant force - Called the
  47. au atoms that have gain or lost electrons and therefore have a charge