1. PHYSICS 113 SYLLABUS Physics 113-A (CCN: 81104) Fall 2005 Prof. Jed Macosko Office: Olin 215, Lab: Olin 213 Phone: 758-4981 e-mail: macoskjc@wfu.edu OFFICE HOURS MWF 1:00-2:00 pm, 215 Olin Feel free to drop by any time and I’ll try to accommodate you. Physics 113 is the first course in a two-semester sequence in calculus-based general physics. It does require the use of calculus and simple vector calculations. SCHEDULE - Lectures: Mon, Wed, Fri 9:00 – 9:50 am -Each student must also enroll for one laboratory session. - Lab sessions begin the week of Monday, August 29. (see which day and time your particular lab session will be)

2. TEXT AND MATERIALS The text is the sixth edition of Physics for Scientists and Engineers by Serway & Jewett. For the lab you must get the lab manual from the bookstore (~ $10). EXAMS AND GRADING There will be one final exam and three 50-minute, in-class midterm exams given at the dates listed below. Homework problems will be assigned for each chapter (due two lecture days later) and they will be also be graded. Homework:20% Laboratory:13% Worst test score: 10% Intermediate test score:14% Best test score:19% Final exam:20% Homework notebook: 3% Class participation: 1% First class: Aug. 24, 2005 Last day to drop class:Sept 28, 2005 Exam 1:Monday, Sept. 19, 2005 Exam 2: Wednesday, Oct. 19, 2005 Exam 3:Friday, Nov. 18, 2005 Final:Monday, Dec. 5, 2005, 9:00 am 93 1/3  G  100, A; 90  G < 93 1/3, A  ; 86 2/3  G < 90, B+; 83 1/3  G < 86 2/3, B; 80  G < 83 1/3, B  ; 76 2/3  G < 80, C+; 73 1/3  G < 76 2/3, C; 70  G < 73 1/3, C  ; 66 2/3  G < 70, D+; 63 1/3  G < 66 2/3, D; 60  G < 63 1/3, D  ; G < 60, F.

3. HOMEWORK AND PROBLEM SOLVING Homework and problem solving is a very important part of learning in a course in physics. Approximately 6-10 questions or problems per chapter will be assigned as homework. We will use WebAssign. Homework is due two lectures after it has been assigned. No late homework is accepted. Some problems may also re-appear on the exams and the final. POSTINGS Homework, exam solutions and other material relating to the course will be posted on the web site for the class: http://www.wfu.edu/~macoskjc/Courses/113Fall05.htm This class does not use CourseInfo or Blackboard. WebAssign http://www.webassign.net/ will be implemented for standard homework assignments. You have nine attempts to get the answers right (Demo follows). ATTENDANCE It is expected that students attend all scheduled classes and laboratory sessions. Attendance at the three exams and the final is required - absence will result in a zero grade unless an official excuse is presented. Excuses should be reported to me in advance or as soon as possible.

4. MondayTuesdayWednesdayThursdayFridaySaturdaySunday Aug. 24 Introduction Chapter 1 Aug. 25Aug. 26 Chapter 2 Motion in 1D Aug. 27Aug. 28 Aug. 29 Ch. 2: 1-D motion Last day of “free” Drop/Add Aug. 30Aug. 31 Chapter 3 Vectors Sept. 1Sept. 2 Chapter 3 Vectors Sept. 3Sept. 4 Sept. 5 Chapter 4 Motion in 2D Sept. 6Sept. 7 Chapter 4 Motion in 2D Last day to add courses Sept. 8Sept. 9 Chapter 5 Force & Motion I Sept. 10Sept. 11 Sept. 12 Chapter 5 Force & Motion I Sept. 13Sept. 14 Chapter 6 Force & Motion II Sept. 15Sept. 16 Catch-up & Review Sept. 17Sept. 18 Sept. 19 Midterm 1 Chapters 1-6 Sept. 20Sept. 21 Chapter 7 Energy Transfer Sept. 22Sept. 23 Chapter 7 Energy Transfer Sept. 24Sept. 25 Sept. 26 Chapter 8 Potential energy Sept. 27Sept. 28 Chapter 8 Potential energy Last day to drop class Sept. 29Sept. 30 Chapter 9 Linear Momentum and Collisions Tentative outline of class

5. MondayTuesda y WednesdayThursdayFridaySaturdaySunday Oct. 1Oct. 2 Oct. 3 Chapter 9 Linear Momentum and Collisions Oct. 4Oct. 5 Chapter 10 Rotation Oct. 6Oct. 7 Chapter 10 Rotation Oct. 8Oct. 9 Oct. 10 Chapter 11 Angular Momentum Oct. 11Oct. 12 Chapter 11 Angular Momentum Oct. 13Oct. 14 Fall Break Oct. 15Oct. 16 Oct. 17 Catch-up and review Oct. 18Oct. 19 Midterm 2 Chapters 7-11 Oct. 20Oct. 21 Chapter 12 Static Equilibrium Oct. 22Oct. 23 Oct. 24 Chapter 13 Universal Gravitation Oct. 25Oct. 26 Chapter 13 Universal Gravitation Oct. 27Oct. 28 Chapter 14 Fluids Oct. 29Oct. 30 Oct. 31 Chapter 14 Fluids Tentative outline of class

6. MondayTuesdayWednesdayThursdayFridaySaturdaySunday Nov. 1Nov. 2 Chapter 15 Oscillations Nov. 3Nov. 4 Chapter 15 Oscillations Nov. 5Nov. 6 Nov. 7 Chapter 16 Waves I Nov. 8Nov. 9 Chapter 16 Waves I Nov. 10Nov. 11 Chapter 17 Waves II Nov. 12Nov. 13 Nov. 14 Chapter 18 Waves III Nov. 15Nov. 16 Catch-up & Review Nov. 17Nov. 18 Midterm 3 Chapters 12-18 Nov. 19Nov. 20 Nov. 21 Chapter 19 Temperature Nov. 22Nov. 23 Thanksgiving break Nov. 24 Thanksgiv ing break Nov. 25 Thanksgiving break Nov. 26Nov. 27 Nov. 28 Chapter 19 Temperature Nov. 29Nov. 30 Chapter 20 Thermodynamics

7. MondayTuesdayWednesdayThursdayFridaySaturdaySunday Dec. 1Dec 2 Catch-Up & Review Dec. 3Dec. 4 Dec. 5 Final 9 AM (section A) Dec. 6Dec. 7Dec. 8Dec. 9Dec. 10Dec. 11 Dec. 12 Winter break

8. TUTOR & HOMEWORK SESSIONS (Room & times to be announced… Stay tuned!!) The tutors: (i) (ii) (iii) Tutor sessions in semesters past were very successful and received high marks from students. All students are encouraged to take advantage of this opportunity. MondayTuesdayWednesdayThursdayFridaySaturdaySunday

9. Part 1: Mechanics Concerned with the motion of objects (larger than atoms; slower than speed of light) Conservation of energy Conservation of momentum Rotation of objects Oscillations Thermodynamics

10. Chapter 1: Physics and Measurement Reading assignment (reading quiz this Friday!): Chapters 1 and 2 Homework 1: (Chp 1) Q5, 12, 17, 22, 52 (Chp 2) Q15 Due: Monday August 29, 2005, 10 pm Check out WebAssign: http://www.webassign.net/

11. Units In mechanics the three basic quantities are: Length (we will use the ________________; Paris, 1792) Mass (we will use the __________________ Paris, 1792) Time (we will use the ___________________________) And combinations of these units (e.g. unit of velocity: m/s) These are units of the SI (Système International) system that is used throughout the world in the Sciences.

12. Changing units We need to apply conversion factors (a ratio of units that are equal to one) to get the right units A snail crawls along with a speed of one inch per minute. What’s its speed in m/s? See appendix for conversion factors Black board example 1.1

13. A significant figure is a reliably known figure. Give answers in significant figures.  black board examples. Significant figures When adding or subtracting numbers, the number of decimal places in the result should equal the __________ number of decimal places of ___________ term in the sum. When multiplying several quantities, the number of significant figures in the final answer is the same as the significant figures in the _____________ accurate of the quantities being multiplied. (Same for ______________)

14. FactorName Symbol 10 24 yottaY 10 21 zettaZ 10 18 exaE 10 15 petaP 10 12 teraT 10 9 gigaG 10 6 megaM 10 3 kilok 10 2 hectoh 10 1 dekada 10 -1 decid 10 -2 centic 10 -3 millim 10 -6 microµ 10 -9 nanon 10 -12 picop 10 -15 femtof 10 -18 attoa 10 -21 zeptoz 10 -24 yoctoy The 20 SI prefixes used to form decimal multiples and submultiples of SI units (from NIST). DNA has a diameter of 2x10 -9 m. How many nanometer is that? Black board example 1.2

15. The building blocks of matter All matter consists of atoms (greek: atomos = not sliceable) All atoms consist of a nucleus surrounded by electrons Nuclei consist of protons and neutrons. The sum of neutrons and protons in the nucleus of a particular element is called the atomic __________ of the element. The number of protons is called the atomic ____________. Protons and Neutrons consist of Quarks (six different varieties) Atomic force microscope image of gold surface Atomic mass of an element : average mass of one atom in a sample of the element. Unit of the atomic mass: 1u = 1.66·10 -27 kg One atom of the ______________ isotope ( 12 C) has a mass of 12 u.

16. Density : Density  = _______________ For example: Aluminum: 2.7 g/cm 3 Lead: 11.3 g/cm 3 Density of matter depends on: The atomic _____ of the individual atoms How tightly atoms are packed Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most _________ metal and can be pressed into a thin leaf or drawn out into a long fiber. (a)If 1.000 oz of gold, with a mass of 27.63 g, is pressed into a leaf of 1.000 µm thickness, what is the area of the leaf? (b)(b) If, instead, the gold is drawn out into a cylindrical fiber of radius 2.500 µm, what is the length of the fiber? Black board example 1.3 (problem 20)

17. Dimensional analysis Dimensions (In this case we mean the units of a physical quantity) can be treated as _____________ quantities. Always do a dimensional analysis when solving problems. Newton's law of universal _______________ is represented by the following equation. F = GMm/r 2 Here F is the gravitational force, M and m are masses, and r is a length. Force has the SI units kg · m/s 2. What are the SI units of the proportionality constant G? Black board example 1.4

18. Problem solving: Always make sure you use the right _________ (conversion may be necessary) Always do an _____________ estimation (Ask yourself: “Does the number I’m getting make sense?).

19. Review: Length, mass, time SI units Dimensional analysis, conversion of units Order-of-magnitude estimates Significant figures