Physics 207: Lecture 2, Pg 1 Physics 207 Labs……start next week (MC1a & 1c)

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Physics 207: Lecture 2, Pg 1 Physics 207 Labs……start next week (MC1a & 1c)

Physics 207: Lecture 2, Pg 2 Physics 207, Lecture 2, Sept 9 ‘09 l Kinematics Finish Chapter 1, Chapter 2  Units and scales, order of magnitude calculations, significant digits (on your own for the most part)  Position, Displacement  Velocity (Average and Instantaneous), Speed  Acceleration  Special case of uniform acceleration  Try out those clickers! Assignments: l For next class: read Chapter 3 (Vectors) l Mastering Physics: HW1 due Weds (today) 6pm l Mastering Physics: HW2 due Friday 6pm

Physics 207: Lecture 2, Pg 3 Physics 207 Introductory Questionnaire What do you hope to learn from this course? What do you hope to do with this new knowledge? What do you expect the lectures to do for you? What do you expect the book to do for you? How many hours/week do you think it will take to learn all you need to know from this course? Include everything: lectures, homework, reading, etc.

Physics 207: Lecture 2, Pg 4 Chapter 2 Reading Quiz Turn on your clickers! The slope of the curve in the position vs. time graph for a particle’s motion gives A. the particle’s speed. B. the particle’s acceleration. C. the particle’s average velocity. D. the particle’s instantaneous velocity. E. not covered in the reading assignment

Physics 207: Lecture 2, Pg 5 Chapter 2 Reading Quiz Is it possible for an object’s instantaneous velocity and instantaneous acceleration to be of opposite sign at some instant of time? A.yes B.no C.need more information D.Not covered in the reading assignment

Physics 207: Lecture 2, Pg 6 Learning Goals for Kinematics 1. Given either s(t), v(t), or a(t), determine the graphs of the other two functions. 2. Become fluent at transferring your thinking between a mental picture, a graphical picture, and an algebraic picture of motion.

Physics 207: Lecture 2, Pg 7

Physics 207: Lecture 2, Pg 8