1 / 16

Physics 114

Physics 114. Professor Fred Salsbury Office Hours: MF 3-4pm, except 2cd Friday of the month, or by appointment 301A Olin http://bob.olin.wfu.edu http://www.webassign.net salsbufr@wfu.edu AIM: profsalsbury. Please Pick Up and READ the Course Policies &Syllabus. Class Participation.

erlene
Download Presentation

Physics 114

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Physics 114 Professor Fred Salsbury Office Hours: MF 3-4pm, except 2cd Friday of the month, or by appointment 301A Olin http://bob.olin.wfu.edu http://www.webassign.net salsbufr@wfu.edu AIM: profsalsbury Please Pick Up and READ the Course Policies &Syllabus

  2. Class Participation • Cut out your voting cards and bring them to every class • If you forget them, borrow some from me • If you lose them, get new ones from me • We will be using them for Concept quizzes in-class • Valuable, consistent class participation will be rewarded.

  3. Reading Assignments and Quizzes “Reading” Assignments: Every Lecture starting Friday, before lecture Required: Textbook Videos Recommended: Applications Online exercises Extra: More rigorous mathematical treatments Recommended and Extra will be on reserve at the library Reading quizzes: include reading assignments due 7am before every lecture; starting Friday A few submissions per problems Work by yourself

  4. Homework and tests Webassign Homework Assignments Required: Every Lecture Starting Monday Many Submissions; perfection is the aim Encouraged to work with others, but you must submit your own work. Due 10pm, several days post-lecture There will also be optional extra problems on webassign for practice. Semester tests Four – see syllabus for dates Lowest score is weighted ½ Final Exam Cumulative, special emphasis on material since test 4 On date provided by the registrar Expected to pass to pass the course

  5. Labs Departmental laboratories Start next week Policies in lab manual TA or Lab manager handle most lab concerns Should not be hard! Will cover extra material Must pass lab (60%) to pass the course Otherwise, a nominal part of the couse.

  6. Grading Final Exam 330 points Semester Tests 350 points Laboratory ,Homework and Reading Quizzes 320 points Total 1000 points You must pass lab to pass the course. You are expected to pass the final to pass the course. If you miss any semester test, I need a note from a medical doctor or the Dean’s office.

  7. Webassign • http://www.webassign.net • Username is your email (without @wfu.edu) • Institution is wfu • Password (if new to webassign) is your student number • If you have used webassign before use your old password. • All unregistered students must email me their name and id # There is an online student manual; refer to it first if you have webassign problems. Log into webassign ASAP. If you have difficulty, contact me.

  8. Web Information • How to access course info: • Go to bob.olin.wfu.edu • Click on teaching, and then Phy1142007F • There will be a page for general announcements. Links to the syllabus and to lecture notes. • This course does not use blackboard.

  9. Survey • Online at webassign • Worth 2 points if completed • Due Monday • To provide me with a idea of your backgrounds and expectations, and tutorial times.

  10. Coordinate systems Different ways of representing space, and physics. Some problems are easier in some coordinate systems, but the physics is invariant. Cartesian Coordinates:

  11. Polar Coordinates Another popular coordinate system, along with cylindrical and spherical

  12. Vectors and Scalars Vectors: number and direction Scalars: number (can have sign) Displacement is a vector. Velocity is a vector. Acceleration is a vector.

  13. The x- and y-components of a vector: The magnitude of a vector: The angle q between vector and x-axis: Vector Components: Geometric

  14. A unit vector is a dimensionless vector having a magnitude 1. • Unit vectors are used to indicate a direction. • i, j, k represent unit vectors along the x-, y- and z- direction . • is another common notation. • i, j, k form a right-handed coordinate system. Vector Components: Algebraic A = Axi + Ayj

  15. Rx = Ax+ Bx Ry = Ay+ By The components of R: Vector Addition: Algebraic I We want to calculate: R = A + B From diagram: R = (Axi + Ayj) + (Bxi + Byj) R = (Ax + Bx)i + (Ay + By)j

  16. The magnitude of R: The angle q between vector R and x-axis: Vector Addition: Algebraic II

More Related