Agenda Phys 121 Common Exam 1 Review

1. AgendaPhys 121 Common Exam 1 Review • Exam overview & mechanics • Sample Exam # 1 • Other Sample Problem Sets • Open Agenda

2. Exam Mechanics and Scope • The exam covers Lectures 1 – 4, comprising material in Chapter 23, Chapter 24.1 – 24.4. and some selected material from the introductory lecture (see the course syllabus). • There are 18 multiple choice questions. 100% on the exam means 16 questions answered correctly. It is possible to score greater than 100%. • Students are expected to show work on the question paper in order to get credit for answering questions correctly. There is otherwise no penalty for wrong answers. • Circle your chosen answers on the test paper as well as on the Scantron sheet. • Use the back of the test paper if you need more room to do scratch work. For long questions, tell the grader to look there. • Bring calculator & #2 soft pencils for marking the SCANTRON forms. • A formula sheet will be provided. It is at the end of the exam package and is identical to the one posted on Janow’s web site. • Turn off cell phones, pagers, laptop computers, any other communication devices or noise makers. • A suggestion: first work the problems you know how to do, then come back and finish the ones that are doubtful. • Be sure to comply with the Honor Code Pledge.

3. Electricity and Magnetism Introduction to Physics 121 • Syllabus, rules, assignments, exams, etc. • iClickers • Quest • Course content overview • First Lecture: Intro • Review of vector operations • Dot product, cross product • Scalar and vector fields in math and physics • Gravitation as an example of a vector field • Gravitational flux, shell theorems, flow fields • Methods for calculating fields

4. Electricity and Magnetism Lecture 2 - Electric Charge Physics 121 - SJ Chapter 23, Sec. 1 - 3 • History • Electromagnetism • Electric Charge • Quantization of Charge • Structure of Matter • Conservation of Charge • Conductors and Insulators • Coulomb’s Law – Force • Shell Theorem • Examples • Summary

5. Summary: Chapter 21: Electric Charge Lecture 2 Charge: Matter: Coulombs Law: Vector Form: Superposition Shell Theorem

6. Electricity and MagnetismLecture 3 - Electric FieldPhysics 121 -Chapter 23 Sec. 4 – 7 (See also 26.6) • Recap & Definition of Electric Field • Electric Field Lines • Charges in External Electric Fields • Field due to a Point Charge • Field Lines for Superpositions of Charges • Field of an Electric Dipole • Electric Dipole in an External Field: Torque and Potential Energy • Method for Finding Field due to Charge Distributions • Infinite Line of Charge • Arc of Charge • Ring of Charge • Disc of Charge and Infinite Sheet • Crossed Electric Fields: CRT example • Summary

7. Summary: Electric Field Lecture 3

8. Physics 121 Lecture 04 - Gauss’ LawSJ Chapter 24 Sec. 1 - 4 • Gaussian Surfaces • Flux Example: Flowing Water • Flux of an Electric Field • Gauss’ Law • Gauss’ Law Near a Dipole • A Charged, Isolated Conductor • Gauss’ Law: Charged Conducting Infinite Sheet • Spherical Symmetry: Conducting Shell with Charge Inside • Cylindrical Symmetry: Infinite Line of Charge • Field of Non-Conducting Sheet • Conducting and Non-conducting Plate Examples • Proof of Shell Theorem using Gauss Law • Examples • Summary

9. Summary: Gauss’s Law Lecture 4