# Science Capter 17

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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
 Author: sbenrud ID: 215197 Card Set: Science Capter 17 Updated: 2013-04-23T00:32:33Z Folders: Description: Science stinks Show Answers: