Christmas Lights Webquest

Hannah Reid

Content

How does the removal of one bulb affect the other bulbs in a circuit?

IV: Removing/Breaking a bulb

DV: Its affect on the non-broken bulbs.

If the Christmas lights are arranged in a parallel circuit, then when 1 bulb bursts the other bulbs will light up.

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Observations

In the parallel circuit the energy moved rather quickly and the lightbulbs were very bright
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I noticed that after removing the bulb, the energy flow in the wires sped up.

If the Christmas lights are arranged in a series circuit then when 1 bulb bursts the other bulbs will not light up

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In the series circuit I noticed that the flow of energy was slow and the lights were dim.
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The flow of energy stopped completely and all the lights went out after removing a lightbulb from the series circuit.
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Conclusion

A parallel circuit is the best series to use for Christmas lights because it is faster. Along with this, it’s more efficient, as evidenced by the Phet Simulator. And, unlike the series circuit, the parallel circuit allows the other lights to keep working if an individual bulb were to break. So, it only makes sense that you use a parallel circuit. Plus, in the parallel circuit, the flow of energy through the wires was much faster and the blubs were much brighter.