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Energy Work 2 review

# Energy Work 2 review - Energy and Work Exam on Wed 9/28...

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Energy and Work

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Exam on Wed 9/28 Includes everything up to and including the basic definition of energy and work Calculators are allowed , (not needed) NO other electronics devices (phone, etc.) are allowed The exam is closed book, closed notes Learn the concepts , not the formulas This class: round up and review
Exam on Wed 9/28 I made all problems from Chap 1-4 available on Mastering Physics as a Practice Problem set. They are for practice only, and NO credit will be given for doing them. I have NOT selected "good" or "appropriate" problems - just made all of them available for practice. I do not recommend doing all of them - there are too many, and not all of them are appropriate . Rather, I do recommend to pick the end-of-chapter problems in your book that you feel you need more practice, and then find the corresponding Mastering Physics problem.

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Energy and Work
A cloudy definition… Energy is the stuff that makes things go ”…

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A more formal approach for what is “ stuff Whatever we define as Energy , we want it to be An additive quantity: E tot = E kin + E pot + E spring + E chem + E therm + … E final = E initial + W Work W is the mechanical transfer of Energy A conserved quantity: Energy can be converted (transformed), but NOT created (otherwise we can make “stuff” “go” without reason…) A scalar
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Energy Work 2 review - Energy and Work Exam on Wed 9/28...

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