Physics 218: Mechanics. Instructor: Dr. Tatiana Erukhimova Sections 801, 802, 803 Lecture 1. Dr. Tatiana Erukhimova. [year]. Howdy!. Atmospheric Thermodynamics Elementary Physics and Chemistry Gerald R. North Tatiana L. Erukhimova Texas A & M University.
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Instructor: Dr. Tatiana Erukhimova
Sections 801, 802, 803
Elementary Physics and Chemistry
Gerald R. North
Tatiana L. Erukhimova
Texas A & M University
Fall 2008: SLATE award
Recipient of 2009 Distinguished Achievement College-Level Award in Teaching
Section 801 (recitation on Thursday) – red folders
Section 802 (recitation on Friday) – yellow folders
Section 803 (recitation on Wednesday) – green folders
If you forgot your Section number,
please check it with me
Please pick them up before each class and return
back after the class
DO NOT take them home!
I’ll return the tests and quizzes in these folders
Instructor Dr. Tatiana Erukhimova
Office: Engineering-Physics building, Room 530
Class times: MWF: 8:00 am to 8:50 am Sections 801-803
Location: Rich 101
Monday and Wednesday 1 pm – 3pm or by appointment
Textbook: “Don’t Panic: Volume I”, by William H. Bassichis, 5th Edition
Dedicated students like it!
No lab manual is required
Clickers Bassichis, 5th Edition
We will use CPS clickers for various kinds of assessment: pop quizzes, homework quizzes, in class discussion, etc. You will need to buy the clickers at the MSC Bookstore and register them for this class at http://elearning.tamu.edu
Grade Policy Bassichis, 5th Edition
Quizzes (including homework quizzes) 10%
Grade Policy (cont) Bassichis, 5th Edition
Grade Policy (cont Bassichis, 5th Edition)
Similar does not mean identical! Bassichis, 5th Edition
Many of you have taken high school physics are used to being given formulas and numbers to plug into them…
We are not going to do this on the exams! We’ll use variables…
Good news: If you do the homework the way we ask you to, you’ll be well prepared for the exams!
Homework Bassichis, 5th Edition
You’ll have weekly homework assignments
Every week you’ll have hw quiz (for 10-15 min) with one problem from your assignment.
Good news: you are allowed to use YOUR notes
(no books or photocopies)
Bad news: small partial credit (for hw). You have to show your work, get a correct formula, and, if required, a numerical answer
Check my webpage for hw assignments Bassichis, 5th Edition
Example for Week 1 (Week Aug 31):
Week Aug 31 (due Sep 7): All Chapter 1 problems and exercises
“Due” means that I’ll give you a hw quiz on that day
Exam schedule Bassichis, 5th Edition
All mid-term exams will be in HELD 105 from 7:00 to 9:30 pm
September 29 Exam I
October 27 Exam II
November 24 Exam III
Help sessions are every Monday 30 min before the class Bassichis, 5th Edition
I also make help sessions before each midterm exam and the final.
However, these sessions cannot substitute for regular class attendance. They are to give you a good guidance on how to prepare for the test and to succeed in problem solving.
Please check my webpage for help sessions schedule
We’re teaching you how to THINK about how to solve technical problems.
We do want to find out how things work!
What is the role of 218 in your career? Bassichis, 5th Edition
Language of physics is math career!
Studies show that you need to be good
at math to solve physics problems
(This is a skill! Anyone can learn it, you just have to learn to deal with the fear and learn it anyways).
First week we will learn some calculus: derivatives and integrals that we’ll need in this course
# Passed Calc I %
468 387 82
On January 28, 1986, seven astronauts were killed when the space shuttle they were piloting, the Challenger, exploded just over a minute into the flight. The failure of the solid rocket booster O-rings to seal properly at low temperature allowed hot combustion gases to leak from the side of the booster and burn through the external fuel tank.
At low temperature molecular bonds become stronger
Molecules move too slow to respond to bending
Rubber becomes brittle
100 C (212 F)
-196 C (-322 F)
-183 C (-297 F)
0 C (32 F)
-223 C (-369 F)
-210 C (-346 F)
Our air is ¾ Nitrogen and ¼ Oxygen
How cold is it? career!
Vostok station -89 C
Nitrogen boils: -196 C (77 K)
Triton, the moon of Neptune:
-235 C (38 K)
We are lucky that here on Earth air is gaseous, while water is liquid!
This is water vapor! Cold N2 leads to condensation of water droplets in the air.
Why this vapor goes down while water vapor from boiling water goes up?
Because this vapor is cold!
Cooling living cells career!
Rubber regains elasticity when it thaws
Living cells are permanently damaged by freezing
Mechanical form of motion is connected with displacements of various bodies relative to each other and with changes of the shapes of the bodies
Have a great day! career!
Please return the folders
Reading: Chapter 1 (derivatives)