clicker15 - PHY102 A Spring 2010 .Recitations: 1 per week...

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PHY102 A – Spring 2010 .Recitations : 1 per week (No recitations in the first week) .Textbook: Serway/Vuille, College Physics 8 th edition, vol. 2 (UB edition for PHY102) Books-Available in Bookstores (north campus) and Greeks and Sneaks (near south campus) .Lab (PHY152): Separate course! .Course website: ublearns.buffalo.edu *syllabus, lecture notes, grades etc etc *all announcements .Homework: www.webassign.net *look at syllabus and UBlearns .Quizzes: *Recitation quizzes every week .Clickers: *Every class, from next week Grading: The final grade will be computed as follows: Recitation Quizzes 15% 1 st Exam 20% 2 nd Exam 20% Final Exam 30% Homework 10% Clickers 5% Exams: 1 st exam: Sat, 02/20, 12 noon – 2 pm 2 nd exam: Sat, 03/20, 12 noon – 2 pm Final exam: Check University website
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Physics 101 Physics 102 • About really small things; things we can’t normally see with our eyes. • Physics can be crazy on a small scale. • Well, it is crazy on any scale! • Explain known things • Motion, Work, Energy etc. • But, Not enough!!
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Chapter 15 Electric Forces and Electric Fields Chapter 15 Electric Forces and Electric Fields • To make use of forces: strength/volume and variation • How about a force 10000000000000000000000000 00000000000000 = 1 x 10 40 times stronger? • Plain English: ten thousand billion billion billion billion times stronger. • How about a force that can be either positive or negative? • Confusing, but very useful. Electric force and magnetic force • Or electromagnetic force • Basic objects: electrons and nuclei
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We are all wired up • Send messages in your body • Use to monitor body – EKG • Use to manipulate body – Defibrillator – Tasers 15.1 Properties of electric charges Greeks (700 B.C. to 18 th century): existence of charges Franklin (~1750): two kinds of charges Two kinds:
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clicker15 - PHY102 A Spring 2010 .Recitations: 1 per week...

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