physics 122 - new mexico institute of mining and...
TRANSCRIPT
Physics 122(Sections 4, 5 and 6)
Instructor: Dr. Saska Gjorgjievska (Georgiefska)
Office Hours: Mon. 10:0011:30 am & Thu. 2:153:45 pm (or by appt). Website: http://www.kestrel.nmt.edu/~saska/phys122.html Textbook: “Physics for scientists and engineers” – Randall D. Knight (3rd edition)
Clickers: Be prepared to start next Tuesday. 10% of grade.
How to succeed?
● Attend lectures and recitations (physically and mentally)● Actively participate in class (follow the lecture, ask questions, find mistakes, …)● Take notes! ● Do the reading assignments.● Do the HW assignments in a timely manner and make sure you can do them by yourself.
How to succeed?How to succeed?How to succeed?How to succeed?cont'd
You learn through doing problems!Practice, practice!
Feel like this? Come see me. Ask for help.Don't wait until it is late!
No cell phones during class!
Expectations
It's a 5unit class … expect to work hard!
Expect 1012 hours/week of reading/homework NOT COUNTING Lab timeLecture timeRecitation time
Expect to get the grade you deserve.
“Getting Started”
Read the syllabus. Bring further questions on Wednesday.
Acquire a text.
Log on to Mastering Physics and see assignments.
Get a clicker and bring it to class from here on out.
Reading and Active Reading
Reading – Read the book like you would read a novel. Read the words, think about the concepts, vocabulary and flow.
Look at the examples.
Do this before class (Spend 6090 min.)
Active ReadingRead the words and follow the flow of equations. Write each equation and fill in the missing steps to the next one. Redraw the diagrams.
Work the examples yourself (Follow along with pencil and paper … don't just read it … write it, work it!)Spend 34 hours after class. THEN do the HW.
If you get behind ...
Do the next reading/HW assignment rather than spending all your time catching up.
Designate some added catchup time for what you missed.
Reading Assignment (next class)
Read Check the website later today.
Actively Read Chapter 3 entirely. (For your success in this class it is (For your success in this class it is crucial that you can manipulate vectors crucial that you can manipulate vectors in every possible way!)in every possible way!)
Homework assignment
Online (MP) HW00 Due by Friday 21, 11:59 pm).
Optics is study of light
Dual nature of light: Wavelike or Particlelike (depending on circumstances).
Wave optics – Wave model of light. Ray optics – Ray model of light.
Very little about waves
Very little about waves
Ray Optics
Ray Model of Light (Ch. 23)Applies when the object light interacts with is much much larger that the wavelength
Light very often travels in straight lines...Light rays.
Everything you see is a source of rays.
Ray Optics (Ch. 23)
Light incident on a surface ...
Reflection
Example 1: reflection lawProblem 23.5 in the text
The mirror in the figure deflects a horizontal laser beam by angle . What is the angle if = 60 ?θ ϕ θ