SES194 Energy in Everyday Life
SES194 Energy in Everyday Life SES194
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This 3 page Class Notes was uploaded by Sarah Booth on Thursday September 22, 2016. The Class Notes belongs to SES194 at Arizona State University taught by Frank Timmes in Fall 2016. Since its upload, it has received 12 views. For similar materials see Energy in Everyday Life in Business at Arizona State University.
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Date Created: 09/22/16
SES194 Energy in Everyday Life Unit 1 Work and Energy -The work done by any force is the product of the force and the distance moved in the direction of the force. -If the force is exactly along the direction of motion, then the work done is work = force x distance moved -If the force is penpendicular to the direction of motion, there is no motion in the force’s direction, therefore, no work is done by the force.As shown in the image below. Sarah Booth *The difference between work and energy* -Work is the transfer of energy. vs. -Energy is the ability to do work. -These are measured in the same units. Energy can take many forms: -Kinetic -Thermal -Potential -Electric -Mechanical -Magnetic -Elastic -Radiative -Atomic -Gravitational -Chemical -Mass -Nuclear Sarah Booth -Energy can be converted from one form to another: Kinetic Energy (energy of motion) Radiative Energy Potential Energy (energy of light) (stored energy) -The joule is the International unit of measurement for energy. One joule is equal to the energy expended (or work done) in applying force of one newton a distance of one meter. -Energy is also expressed in other units such as ergs, calories, kilocalories (food calories), and BritishThermal Units. There is always a conversion factor between these different units. -Energy is a scalar physical quantity - just a number. Sarah Booth
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