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Science
Unit 8
Question | Answer |
---|---|
Electricity a form of | Energy |
Name examples of electricity at home, school, or in nature. | Home - wash clothes, heat water for showers, light; School - light, computers, smartboard, or copy machines; Nature - lightening |
An electrical charge that builds up in an object | Static electricity |
Objects with the opposite charge | Attract (pull) |
Objects with the same charge | Repel (push away) |
A steady stream of charges that moves through a material, such as copper wire | Current Electricity |
The path the electrical current follows | Circuit |
For an electrical current to work, it must be | Complete or closed |
List some examples of new electrical technology. | Electric cars, solar panels, smart meters |
Give an example of an insulator related to electricity. | Rubber around electrical wires or heavy clothing electrical workers wear |
Give an example of a conductor related to electricity. | Wires or plugs |
A circuit that forms a complete loop; allows an electrical device to work | Closed circuit |
A circuit with a broken path; charges cannot flow | Open circuit |
Controls the flow of charges by opening and closing the circuit | Switch |
in a series circuit, electric charges must follow a | Single path |
In a series circuit, the battery's charged particles move from its | Positive terminal to its negative terminal |
What happens if any part of a series circuit breaks? | The circuit is open and nothing works |
Charges have several different paths to follow | Parallel circuit |
What happens if one of a parallel circuit breaks? | The charges can still flow along the other paths |
To protect us from fire, what are added to each circuit? | Fuses and circuit breakers |
How do fuses and circuit breakers work? | They switch automatically and open if charges flow too fast through a circuit |