Lighting a Bulb
__Length of wire
Different lengths of wires were being used in the circuit of a light bulb and two batteries connected in a circle (series). It was determined that, although the results were minimal, the shorter the wires the brighter the bulb.
__Lighting two bulbs
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| bulbs in parallel |
Two bulbs were lit using two batteries and some wires. When the light bulbs were connected in one complete circle (series) the bulbs lit up, but very dimly. When the light bulbs were connected in two circles (parallel) they were lit but much brighter than before. This is because in a series the voltage must be shared between the two light bulbs but when they are in parallel they have the same amount of full voltage across each bulb.
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| bulbs in series |
Power in Electric Circuits
A power supply was connected to the leads on a curly wire mounted on a round piece of plastic. The curly wire was then placed into a cup of water and heated for ten minutes. After the water was heated, the final temperature was calculated. We calculated the temperature of the water to be 53.3 degrees C. The actual temperature measured by logger pro was 42.1 degrees C.
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