Science Capter 17

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Author:
sbenrud
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215197
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Science Capter 17
Updated:
2013-04-22 20:32:33
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Science words
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Science stinks
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  1. Electricity
    The collection or flow of electrons in the form of an electric charge
  2. The collection or flow of electrons in the form of an electric charge is?
    Electricity
  3. Law of electric charges
    The law that states that like charges repel and opposite charges attract
  4. The law that states that like charges repel and opposite charges attract
    Law of electric charges
  5. Electric Field
    The space around a charged object in which another object experiences an electric force
  6. The space around a charged object in which another object experiences an electric force is?
    Electric field
  7. Electric Force
    • The force of attraction or repulsion on a charged particle that is due to an electric field.
    • As electrons connect on an object, it becomes negatively chared.¬†As electrons leave an object it attains a positive charge.
  8. The force of attraction or repulsion on a charged particle that is due to an electric field. As electrons connect on an object, it becomes negatively chared. As electrons leave an object it attains a positive charge. ??
    Electric Force
  9. Friction
    • Electrons are "wiped" from one object to another
    • EX- hair and balloon
  10. Electrons are "wiped" from one object to another
    EX- hair to balloon
    Friction
  11. Conduction
    • Electons move from one object to another by direct contact
    • - EX. shuffling feet and then touching a doorknob
  12. Electons move from one object to another by direct contact - EX. shuffling feet and then touching a doorknob
    Conduction
  13. Induction
    • Charges in an uncharged metal object are rearranged without direct contact with a charged object.
    • EX- Comb to water
  14. Charges in an uncharged metal object are rearranged without direct contact with a charged object. EX- Comb to water
    Induction
  15. Electrical Distarge
    • The passing of an electric current through the air from a negatively charged object to a positively charge object.
    • CAUSES LIGHTNING
  16. The passing of an electric current through the air from a negatively charged object to a positively charge object. CAUSES LIGHTNING
    Electrical Distarge
  17. Static Electricity
    Static charge at rest, usually caused by friction or induction
  18. Static charge at rest, usually caused by friction or induction
    Static Electricity
  19. Electric Distarge
    The release of electricity stored in a source
  20. The release of electricity stored in a source is
    Electric Distarge
  21. Electrical conductores
    Materials that can move electrons easily. GOOD CONDUCTORS METALS (COPPER,GOLD,SILVER)
  22. Materials that can move electrons easily are. GOOD CONDUCTORS METALS (COPPER,GOLD,SILVER)
    Electrical conductors
  23. Electricial Nonconductors (Insulators)
    Materials that DO NOT move electrons easily. WOOD, RUBBER
  24. Materials that DO NOT move electons easily. EX- WOOD, RUBBER
    Electricial Nonconductors (Insulators)
  25. Semiconductors
    Matericals that sometimes behave as conductors and sometimes behave as insulators. EX- SILICON, ARSENIC, GERANIUM
  26. Matericals that sometimes behave as conductors and sometimes behave as insulators. EX- SILICON, ARSENIC, GERANIUM
    Semiconductors
  27. Electric Current (I)
    The rate at which charges pass through a given point
  28. The rate at which charges pass through a given point is
    Electric Current (I)
  29. Electric current is measured in?
    Amperes (A)
  30. Alternating Current (AC)
    • Charges continuously shift from going in one direction to going in the reverse direction.
    • EX- outlets
  31. Charges continuously shift from going in one direction to going in the reverse direction.EX- outlets
    Alternating Current (AC)
  32. Direct Current (DC)
    • Charges always flow in the same direction.
    • EX- Camera Battery
  33. Charges always flow in the same direction.EX- Camera Battery
    Direct Current (DC)
  34. Voltage
    The flow of electricity in current electricity has electrical pressure. The potential difference between two points. They go from high to low.
  35. The flow of electricity in current electricity has electrical pressure. The potential difference between two points. They go from high to low.
    Voltage
  36. Voltage is measured in?
    Volts (V)
  37. Resistance (R)
    The opposition to the flow of an electric current, causing the electrical energy to be converted to thermal energy or light.
  38. The opposition to the flow of an electric current, causing the electrical energy to be converted to thermal energy or light.
    Resistance (R)
  39. Resistance is measured in?
    Ohms (omega sign)
  40. What influences resistance?
    Thickness, length, temperature, and material
  41. Thickness, length, temperature, and material all do what?
    Influence resistance

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