Lecture_1_(Student_Handout)

Lecture_1_(Student_Handout) - PHYS 172: Modern Mechanics...

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Summer 2009 PHYS 172: Modern Mechanics Lecture 1 – Matter and Interactions, Vectors Read 1.1 – 1.5 Please pick up the 6 handouts by the door: • Syllabus • Schedule • Problem Guidelines • CHIP/WebAssign Info • Today’s lecture notes •Photo Welcome to PHYS 172H Course web page: go to www.physics.purdue.edu and select Phys 172H Textbook : “Matter & Interactions – Volume 1 – Modern Mechanics” by Ruth Chabay and Bruce Sherwood (Wiley). Lab Manual : “Physics 172 Laboratory Manual – 3rd Edition” by John Yeazell WebAssign : (homework) go to: www.webassign.net/login.html CHIP : scoring and grades: http://chip.physics.purdue.edu/public/172/summer2009/ i>Clicker : Go to the course web page, register on CHIP Help center – room 11
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1. Register for WebAssign. You have a short HW assignment due at 11:59 PM. 2. Login to CHIP and register your iClicker. We use them tomorrow. 3. Read the syllabus. 4. Read 1.1-1.9. Things to Do Today: Matter and Interactions Goal: use small set of fundamental principles explain broad range of phenomena Fundamental Principles and Matter Chapter 1: Interactions and Motion Displacement Vectors Detecting Interactions
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We’ve learned that everything in the universe is made out of the same types of matter: The interactions occurring in celestial sphere are the same as those here on Earth! An apple falls to the ground for the same reason that the moon falls around the Earth. And we’ve learned that matter interacts the same no matter where it is in the universe.
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Detecting interactions Objects made of matter interact with each other: Gravitationally Electrically Magnetically Through strong and weak interaction Detecting interaction : Change of velocity Motion Non-uniform motion Velocity changes in time Uniform motion implies that there is no “net” interaction constant speed + constant direction = constant velocity
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Newton’s first law of motion Isaac Newton 1643 – 1727 An object moves in a straight line and at constant speed
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This note was uploaded on 09/14/2009 for the course ENGR 126 taught by Professor Oakes during the Fall '08 term at Purdue.

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Lecture_1_(Student_Handout) - PHYS 172: Modern Mechanics...

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