First off, I have to say, WE UPSET ST. LOUIS! I was in shock and amazed when the clock was at 00:00 and the score 35-30. This was truly a battle of pure heart. Then when I went on the bus heading for school, I was thinking about what I'm going to write my physics journal about. I woke up the next morning and turned on my side and looked right at all of the electrical cords under my desk. Then I thought about what we are learning in physics and what we have learned.
In the picture, you are able to see many cords differing in thickness. You also see the power strip which is like the voltage source for all the cords. Throughout the power strip, there is an electical current which the flow of charge is beging transferred back and forth also known as an alternating current (ac) and is then transferred into the cords. Alternating currents reverses directions periodically. The energy that flows through the cords comes from the 120 volt electrical outlet. Current is measured in amperes. Also, the flow of charge persits for as long as there is a potential difference. Without a potential difference, no charge flows.
Then I observed the thickness of all the cords which relates to electrical resistance. The resistance of a wire depends on the thickness and length of the wire, and on its particular conductivity. Thick wires have less resistance than thin wires. The power strip has a thick wire which is able to transfer a charge more easily throughout the whole connection of wires.
Current=Delta V/Resistance.
1 comment:
hey, fire hazard! anyway, excellent detail. very thorough. like it!
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