Welcome to Physics 211! General Physics I Physics 211 Spring 2014 Lecture 01-1 1 PHY 215 Physics I for Honors & Majors Are you interested in becoming a physics major? Are you enrolled in the Honors Program? Would you like to see a few advanced topics beyond the standard Mechanics curriculum? If so, please contact Prof. Peter Saulson as soon as possible (email: psaulson@syr.edu) with your answers to these questions and we can evaluate if Physics 215 will be a good match for you. o Meets at the same time as PHY211 in room 208 o ~20 students Physics 211 Spring 2014 Lecture 01-1 2 1
Phys 221 is a different course! Questions? Contact the Lab Manager directly: Sam Sampere, smsamper@syr.edu Physics 211 Spring 2014 Lecture 01-1 3 SU PHY211 General Physics I Fall 2012 Course staff: Me: Prof. Lisa Manning: phys211@syr.edu Recitation Instructors Tyler Hopkins (head TA), tyhopkin@syr.edu, Clinic hours: TBA Gana Kamath Jorge Lopez, jhlopez@syr.edu, Clinic hours: Tuesday and Wednesday: 9am-10am Zhenghua Zhou Kazage Utuje Jie Yang Raghav Govind Jha, rgjha@syr.edu, Physics Clinic Hours : Wed 1-3 pm Stephanie Hathaway Julian Georg, jsgeorg@syr.edu, Clinic hours: Th 9-11am Physics 211 Spring 2014 Lecture 01-1 4 2
About me I am also a researcher Physics of embryonic development Physics of how materials bend and break Office: 243 Physics Bldg Ask a physicist Send me an email with any physics question, and I will try my best to answer it in the first 5 minutes of class: What is string theory?, Why are metals shiny?, etc. Physics 211 Spring 2014 Lecture 01-1 5 Learn Mechanics About this course Develop good understanding of a few important concepts Reason qualitatively and quantitatively Learn to apply to unfamiliar situations And more Make friends who you can study with throughout your SU career Learn about new discoveries in physics Maybe even have fun? Physics 211 Spring 2014 Lecture 01-1 6 3
Course website Everything is here: http://tinyurl.com/k3rqtgr https://mmanning.expressions.syr.edu/phys211spr ing2014/ Links to thing you need to do this week: Facebook page signup (optional) Electronic clicker registration (by next class) Pre-assessment on blackboard Make sure you have 35 minutes to take the quiz before you begin! Class expectations quiz Mastering Physics HW registration Physics 211 Spring 2014 Lecture 01-1 7 Course Information (http://tinyurl.com/k3rqtgr) Materials (see website for full details) - Physics for Scientists and Engineers, Vols. 1, 3 rd edition, R.D. Knight - Mastering Physics registration code Turning Point electronic clicker is required Also on the website check it out regularly! Announcements/reminders of exams and homework assignments, office hours Course outline, objectives Course calendar Lecture slide shells, homework solutions, exam solutions Physics 211 Spring 2014 Lecture 01-1 8 4
Course Outline Week First lecture reading Second lecture reading 13-Jan 1-1: Review and Units 1.1-1.8 1-2: 1D motion 2.1-2.3 20-Jan 2-1: Motion 2.4-2.7 2-2: Vectors 3.1-3.4 27-Jan 3-1: Projectile motion 4.1-4.3 3-2: Circular motion 4.5-4.7 3-Feb 4-1: relative motion 4.4 4-2: Forces 5.1-5.7 10-Feb Midterm 1 5-2: Equilibrium, weight 6.1-6.3 17-Feb 6-1: Friction, Drag 6.4, 6.5 6-2: Newton s 3rd law 7.1-7.5 24-Feb 7-1: Newton s laws in 2D 8.1-8.5 7-2: momentum and collisions 9.1-9.6 3-Mar Midterm 2 8-2: momentum and Energy 10-Mar 9: spring break 9: spring break 10.1-10.7 17-Mar 10-1: Energy and Work 11.1-11.4 10-2: Work and Power 11.5-11.9 24-Mar 11-1:Extended objects 12.1-12.3 11-2: torque 12.4-12.5 31-Mar 12-1: rotation 12.6-12.8 12-2: angular momentum 12.10-12.11 7-Apr 13-1: rolling 12.9 Midterm 3 14-Apr 14-1: Newtonian gravity 13.1-13.6 14-2: Oscillations 14.1-14.8 21-Apr 15-1: Waves 20.1-20.4 15-2: Sound 20.5-20.7 28-Apr 5-May 16-1: Last class -review Final exam: May 5th Physics 211 Spring 2014 Lecture 01-1 9 Participation: clickers 10 % of your grade will come from in-class participation Workshop attendance Clicker question participation in lecture Only participation counts (not the correct answer) You must register your clicker on the class website to get credit before our next class! Four classes will be automatically excused in case of absences, broken clickers, etc. It is your responsibility to check your grades and make sure you are getting credit for clicker questions. Physics 211 Spring 2014 Lecture 01-1 10 5
Participation: lectures Shells of lecture slides available evening before on class website Lecture recordings will be available the evening after. Participation: recitation Bring your Knight textbook with you Attendance will be taken (and is required) You must show up within the first 5 minutes for your attendance to count Physics 211 Spring 2014 Lecture 01-1 11 Assignments: three types Prelecture assignments 5% of total grade HW assignments 18% of total grade Self-assessment 2% of total grade Participation only (responses are not graded) Physics 211 Spring 2014 Lecture 01-1 12 6
Prelecture assignments (short!) When? : due a half hour before class (9:00 or 10:30 am Tu/Th) Where?: assigned online on Mastering Physics at least two days before due date Due dates and links on Assignments calendar on class website How?: Read the assigned chapters before lecture, and then answer the short set of online questions. Should take you 10 minutes or less to complete the assignment. Why?: to test understanding of reading and prepare you to answer clicker questions and work in small groups Physics 211 Spring 2014 Lecture 01-1 13 Homework assignment When?: Due Friday in your recitation section (within first 5 minutes) Where?: Assigned online on Mastering Physics at least one week before due date How?: Two different ways (a) on paper and (b) online (a) One exam-style problem each week, turned in on paper during recitation Graded for partial credit and completeness (b) Problem set online in Mastering Physics Gives you immediate feedback on all problems Googling the answer is cheating, but more importantly, STUPID Why?: Practice and understand how to do problems helps you learn and get ready for exams Solutions to select problems posted online after due date No late homework will be accepted Physics 211 Spring 2014 Lecture 01-1 14 7
Self-assessment quiz (very short) When? : due weekly on Fridays at 5 pm Where?: you will receive an email every week with a link to the quiz fill it out online How?: Answer the same set of questions every week about the amount of time you spent studying, what you learned, what the instructor did right and wrong. The program will display a history of your answers and help you compare yourself to others in the class Why?: to help you figure out what you need to do to be successful in this class, see what others are doing, and give immediate feedback to the instructor Physics 211 Spring 2014 Lecture 01-1 15 º 8 å i=1 v x x x i Notation! Physics 211 Spring 2014 Lecture 01-1 16 8
Converting units Convert 1 km/hr to microns (micrometers) per second: 1 km hour = Physics 211 Spring 2014 Lecture 01-1 17 Clicker test: Enter Channel You must do this for EVERY lecture Lecture 01-2 Physics 211 Spring 2014 Lecture 01-1 18 9
Clicker test: Channel What is today s date? 1. August 15 th 2. August 28 th 3. August 30 th 4. Sept 1 st Physics 211 Spring 2014 Lecture 01-1 19 Clicker question 1-1.1 400 inches 2 Convert to m 2 /s. Use the fact min that 2.54 cm = 1 in. 1. 3.3 * 10-3 m 2 /s 2. 4.3*10-3 m 2 /s 3. 1.69*10-1 m 2 /s 4. 1.69*10-3 m 2 /s 5. None of the above Physics 211 Spring 2014 Lecture 01-1 20 10
Kinematics-- describing motion 1D Physics 211 Spring 2014 Lecture 01-1 21 Four basic types of motion Physics 211 Spring 2014 Lecture 01-1 22 Slide 1-19 11
The Particle Model Often motion of the object as a whole is not influenced by details of the object s size and shape. We only need to keep track of a single point on the object. So we can treat the object as if all its mass were concentrated into a single point. A mass at a single point in space is called a particle. Particles have no size, no shape and no top, bottom, front or back. Below is a motion diagram of a car stopping, using the particle model. Physics 211 Spring 2014 Lecture 01-1 23 Slide 1-27 The Particle Model Motion Diagram in which the object is represented as a particle Motion diagram of a rocket launch Physics 211 Spring 2014 Lecture 01-1 24 Slide 1-26 12
Clicker question 1-1.2 Three motion diagrams are shown. Which is a dust particle settling to the floor at constant speed, which is a ball dropped from the roof of a building, and which is a descending rocket slowing to make a soft landing on Mars? A. (a) is dust, (b) is ball, (c) is rocket. B. (a) is ball, (b) is dust, (c) is rocket. C. (a) is rocket, (b) is dust, (c) is ball. D. (a) is rocket, (b) is ball, (c) is dust. E. (a) is ball, (b) is rocket, (c) is dust. Physics 211 Spring 2014 Lecture 01-1 25 Slide 1-29 Reading assignment Kinematics and graphs Chapter 1 and 2.1-2.3 in textbook Physics 211 Spring 2014 Lecture 01-1 26 13
Assignments due this week (under Assignments on class website) Due Thursday Jan 16 th a half hour before class 1-2 Prelecture assignment on Mastering Physics Due next Tuesday Jan 21 Short class expectations quiz (on class website) Pre-lecture assessment (on blackboard) HW #1 on Mastering Physics introduction to Mastering Physics For this assignment ONLY, do not need to hand in a paper version to your TA Physics 211 Spring 2014 Lecture 01-1 27 14