26. Examples of electrical safety devices: -used to attract lightning а. away from a house. b. -is used to discharge static electricity from an electrical cord. - is used to prevent a с. circuit from overloading by having a piece of wire that melts to open the circuit. d. -is used to prevent a circuit from overloading by having a piece of metal that bends when it gets heated and opens the circuit. -is a reset button used to open an electrical circuit in locations near water. е.

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Chapter1: Units, Trigonometry. And Vectors
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26. Examples of electrical safety devices:
а.
-used to attract lightning
away from a house.
b.
-is used to discharge static
electricity from an electrical cord.
- is used to prevent a
c.
circuit from overloading by having a piece of wire that
melts to open the circuit.
d.
-is used to prevent a circuit
from overloading by having a piece of metal that
bends when it gets heated and opens the circuit.
-is a reset button used to
open an electrical circuit in locations near water.
_is a large discharge of static electricity.
of water
charge to build-up in
charge on the
_is large enough, the static
е.
27.
Static electricity builds up from the
molecules in the air that allow a
the bottom of the cloud that attracts the
ground. When the
charge is released.
28.
is caused by the rapid expansion and contraction
of heated air due to air being heated by lightning.
is the pathway that electrons travel along.
is used to open and close a circuit.
31. Three ways to increase the resistance in a wire are to
29. A
30. А
make it
,or
Transcribed Image Text:26. Examples of electrical safety devices: а. -used to attract lightning away from a house. b. -is used to discharge static electricity from an electrical cord. - is used to prevent a c. circuit from overloading by having a piece of wire that melts to open the circuit. d. -is used to prevent a circuit from overloading by having a piece of metal that bends when it gets heated and opens the circuit. -is a reset button used to open an electrical circuit in locations near water. _is a large discharge of static electricity. of water charge to build-up in charge on the _is large enough, the static е. 27. Static electricity builds up from the molecules in the air that allow a the bottom of the cloud that attracts the ground. When the charge is released. 28. is caused by the rapid expansion and contraction of heated air due to air being heated by lightning. is the pathway that electrons travel along. is used to open and close a circuit. 31. Three ways to increase the resistance in a wire are to 29. A 30. А make it ,or
is the flow of electric charge through a circuit.
is the build-up of electric charge.
is the amount of electric charge that travels through a
circuit.
1.
2.
3.
is the potential difference that provides energy in a
circuit.
4.
5. Ohm's law states that
is equal to
times
6. Voltage has the symbol
and is measured in
7. Current has the symbol
and is measured in
8. Resistance has the symbol
and is measured in
is the rate at which electrical energy is used.
is the amount of electrical power used for a
9.
10.
certain amount of time.
11. Electrical energy is measured in
12. Electrical power is measured in
13. А
circuit only has one pathway for electrons to
move.
14. A
circuit has more than one pathway for electrons to
move.
15. In a
circuit, if one light goes out, all of the other lights
go out.
16. In a
branches stay on.
17. In a
become dimmer.
18. In a
circuit, if one light goes out, the lights in the other
circuit, as more lights are added, the lights
circuit, as more lights are added, the lights do not
change in brightness.
19. Metals make good
because they allow the flow
of electric current.
20. Nonmetals make good
the flow of electric current.
because they do not allow
are metalloids that are not very good conductors.
current travels in only one direction.
current changes direction back and forth as it travels
21.
22.
23.
from one place to another.
24.
current is used in the United States because it has to
travel long distances.
current is used in Europe because it does not have to
25.
travel long distances.
12
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Transcribed Image Text:is the flow of electric charge through a circuit. is the build-up of electric charge. is the amount of electric charge that travels through a circuit. 1. 2. 3. is the potential difference that provides energy in a circuit. 4. 5. Ohm's law states that is equal to times 6. Voltage has the symbol and is measured in 7. Current has the symbol and is measured in 8. Resistance has the symbol and is measured in is the rate at which electrical energy is used. is the amount of electrical power used for a 9. 10. certain amount of time. 11. Electrical energy is measured in 12. Electrical power is measured in 13. А circuit only has one pathway for electrons to move. 14. A circuit has more than one pathway for electrons to move. 15. In a circuit, if one light goes out, all of the other lights go out. 16. In a branches stay on. 17. In a become dimmer. 18. In a circuit, if one light goes out, the lights in the other circuit, as more lights are added, the lights circuit, as more lights are added, the lights do not change in brightness. 19. Metals make good because they allow the flow of electric current. 20. Nonmetals make good the flow of electric current. because they do not allow are metalloids that are not very good conductors. current travels in only one direction. current changes direction back and forth as it travels 21. 22. 23. from one place to another. 24. current is used in the United States because it has to travel long distances. current is used in Europe because it does not have to 25. travel long distances. 12 000 000 Dashboard Calendar To Do Notifications Inbox
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