SES194 Energy in Everyday Life
SES194 Energy in Everyday Life SES194
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This 2 page Class Notes was uploaded by Sarah Booth on Saturday October 1, 2016. The Class Notes belongs to SES194 at Arizona State University taught by Frank Timmes in Fall 2016. Since its upload, it has received 8 views. For similar materials see Energy in Everyday Life in Business at Arizona State University.
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Date Created: 10/01/16
SES194 Energy in Everyday Life Unit 1 Power and Energy Scales We addressed work and energy in a previous set of notes. In our everyday lives, not only how much work is done, but how fast it is done is also relevant. -A 1200Watt toaster singes bread twice as fast as a 600Watt toaster. -Power as the energy transferred (work) divided by the time needed to do work. Power = energy time to do work -Power is the rate at which energy changes with time. -Power is measured withinWatts. -OneWatt being the power needed to use one joule of energy in one second. Sarah Booth -Since Power = energy , we can also say time to do work Energy = power x time -This is what the electric company measures, kilowatt-hours, to generate your monthly bill. Refer to the Order of Magnitude Spiral to the left! Sarah Booth
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