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Science 9Name: ____________________________
Chapter 9 – Circuits and Powers Study Guide
Key Vocabulary:
Junction point Watt Parallel circuit Electric power Series circuit Power rating Power Kilowatt-hour Joule Ohm’s Law Resistance
Things to know:
Identify the difference between series and parallel circuits Draw and recognize series versus parallel circuits Determine the voltage consumed at each load in a series or parallel circuit Determine the current in a wire within a series or parallel circuit Determine when resistance increases or decreases if placed in a series versus parallel Calculate electrical power, current, and voltage using the formula, P = IV Calculate energy consumption
o Be able to convert units Calculate how much you will pay for electricity use
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