After taking a look at our quiz results, we took a look at how our homes are wired up from the three wires supplied to our homes by APS (or SRP). It turns out that V = iR and Vi = P work fine for the 120 VAC that we receive. The 120 V is just Vrms for the sinusoidally varying potential supplied by the power company.
Assignment for tomorrow:
We finished and turned in our Circuit Practice work today. There are some key circuits to understand in that assignment.
We also took a "formative assessment" about these circuits. Tomorrow? Household electricity: Circuits and Safety We mainly worked on Circuit Practice questions 1 through about 13 today. We'll finish them tomorrow and take a quick quiz to find out how we're doing.
Assignment:
We worked on our Resistor Circuits today and then tackled tomorrow's homework, which is a good test of your conceptual understanding of the circuits we have been working with.
Assignment: The main work today was figuring out how to use Ohm's Law and our understanding of resistor circuits to solve for currents and potentials in resistor networks.
Assignment: Series and parallel resistors were on the docket today, and we figured out how to determine their equivalent resistances. We also presented Ch 18 P: 26, 27, 28, 29, 31.
We completed our circuit building today by constructing all four possible circuits using a power supply and three light bulbs.
Assignment:
In Periods 5 and 6 we dealt with power in electric circuits. Period 1 began to build series and parallel circuits with light bulbs. We will 'map' the electric potentials around these circuits and use this map to develop an understanding of these two ways of arranging the bulbs. We will finish our work on this next Tuesday after our long weekend.
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Physics IIMr. Swackhamer Archives
May 2019
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