Christmas Light Webquest

Grace Lewis 6th hour

Hypothesis 1

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

Independent Variable: parallel Dependent Variable: light

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Observation: The electrons all move in the same path, they travel downward then follow through to the light bulb.
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Observation: I noticed that the electrons keep moving to light the other bulbs but the wire where the bulb was connected, the electrons didn't move at all.

Hypothesis 2

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

Independent Variable: series Dependent Variable: light

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The electrons all move the same direction, clockwise.
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I noticed that none of the bulbs lit up because no electrons are moving.
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Conclusion

A parallel circuit is the best series to use for Christmas lights because all lights were lit, even without 1 bulb missing. If you have a series circuit you will not be able to tell which light was broken because all of them will be off. The only way you would be able to fix it would be to go through all the lights and switch them out for a better bulb until the lights came back on. But if you use a parallel circuit you will not have that problem and could identify the broken bulb very quickly. That is why using a parallel circuit of Christmas lights is a better option than using a series circuit of Christmas lights.