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Electricity Review
Prepare for your Electricity test with this stack
Question | Answer |
---|---|
What are the three parts of every electrical circuit? | 1. Battery 2. wires 3. bulb |
Which type of circuit allows a current to flow through it? | closed |
Plastic and Glass are good... | insulators |
What do you call a material that allows electricity to flow through it? | conductor |
Johnny built a circuit where all of the light bulbs stayed on, even when he unscrewed one lightbulb. What type of circuit did Johnny build? | parallel circuit |
What do you call a substance that electricity can not flow easily through? | insulator |
Most metals are good _________. | conductors |
Electrons flowing from one object to another is called... | electricity |
What rule of polarity do you need to follow with batteries? | Positive terminal must be touching the negative terminal |
What do you call the part of bulb that glows? | filament |
If you unscrew a light bulb in a series circuit, what happens to all of the other bulbs? | They go out. |
As you add lightbulbs in a series circuit, what happens to the brightness of the lightbulbs? | They get dimmer. |
As you add lightbulbs in a parallel circuit, what happens to the brightness of the lightbulbs? | They stay the same. |
Why do all of the other lightbulbs stay lit in a parallel circuit, even after you unscrew one bulb? | There are many paths of electricity. The electrons can choose a different path. |