Physics 212 College Physics II

Introduction  Instructor:Larry Watson  Office:105 Witmer  Phone:   web:und.nodak.edu/instruct/lwatson/212

Textbook  “Physics”  by Cutnell and Johnson, fifth edition  Lab Text  “Introductory Physics Laboratory Manual”

Labs  212 labs are on Mondays and Tuesdays beginning Jan 27 (Next week)  Attendance is mandatory!  You must complete all labs to pass the course!  15% of course grade  No labs Jan (Monday holiday)

Homework  Assigned daily  Collected randomly, beginning of class  Two late assignments accepted by 5 p.m. same day  Two lowest scores dropped  25% of course grade

Exams  Four two-hour evening exams (5-7 Thursdays)  Two hour final  Final is on Tuesday, May 13, 10:15 a.m. Please make travel plans accordingly as I CANNOT change this date or give early finals!  Questions are “explain your reasoning” type

Exams  No multiple choice  Explain your reasoning-show your work  Correct numerical answers not the most important thing  Quality thinking is important

Grading  Grading Scale: 90 or above = A 80 or above = B 70 or above = C 60 or above = D The lower cutoff may be lowered, if necessary, but never raised.

Lecture  Active participation by YOU!  Practice problems  Life threatening demonstrations!  I prefer discussion so:  ask questions  make comments…  Take notes?

Study Ideas  Start HW the day it is assigned! (I will take questions the next class day.)  Study some each night.  Work in groups.

Doing Homework  Do something even if you think it’s the wrong thing--use hindsight to evaluate your work.  Don’t try to write your final solution on the first try, use scratch paper.  Draw a diagram or picture.  Write large.  Neatness counts!

Web Site  Lectures (power point)  Homework (from text or in word format)  Practice problems  Old exams  Caution: Printing lectures can be time and paper intensive. You can print up to 6 slides per page.

Content  Waves  sound, light, interference  Optics  refraction, reflection, lenses, mirrors, images  Electricity and Magnetism  charge, force, E fields, circuits, resistance, capacitance, B fields, induction  Other topics?  fluids, nuclear, quantum, thermodynamics

Things to think about: Consider a traveling wave: sound, light, football stadium, water... How would you define a “wavelength?” How would you define a “frequency?” How would you define a “wave velocity?” What happens when two waves run into each other? How does the direction of the wave’s motion compare to the direction of the individual particle’s motion?