Physics 21S
Mechanics, Fluids, and Heat
Summer 2014
Welcome to Physics 21S: Mechanics, Fluids, and Heat with Lab. We will
study the physics behind many everyday phenomena.
Instructor: Dr. Ryan Smith
Course Hours: Monday – Friday 10:00am-11:30am; Mondays 1:15-2:45;
Optional Companion Session /Week in review (Thursdays or Fridays, TBA);
Course Location: Hewlett 201
Labs: Tues. and Thurs., two hours each.
Discussion sections: Tues, Wed, Thurs, 50 minutes each.
Lab/discussion sections offered as three different options:
1. Tu/Th 1:15 to 4:05 PM and Wed 1:15 to 2:05 PM
2. Tu/Th 3:15 to 6:05 PM and Wed 3:15 to 4:05 PM
3. Tu/Th 6:00 to 8:50PM and Wed 6:00 to 6:50PM
The first hour of the Tu/Th section is for discussion section; the next two
hours are lab. Wed is a discussion section.
Office Hours: Mondays 11:30a-1p. Office: Varian 162. Also, before and
after class & by appointment
Email: rpsmith1@stanford.edu
Grading summary
Note: there are no make-ups, early or late, for anything
Type
‘Midterm’ exams
(75 min)
Final Exam
(2 hours,
comprehensive)
Lab Write-ups
Pre-labs
Pre-lecture
Quizzes
In-class
collaborative
problems
Date Offered or
Date Due
Monday 6/30, 7/7,
7/14 in-class (10am)
Friday, July 18, inclass (10am)
Total
Drop policy
Weight
45%
No drops
allowed
20%
No drops
allowed
Tue and Thurs, due
at the end of lab
Tue and Thurs
beginning of
Discussion section
8 am on the morning
of the lecture, T-F.
Mon. quiz due 1pm.
Daily during lecture
15%
Drop lowest
10%
Drop lowest
5%
Drop two lowest
5%
Two absences
allowed
Discussion/Lab: You will choose a 3-hour lab/discussion section that meets
twice a week. You must sign up for one of these sections on Axess. Signing
up for a section automatically signs you up for the lecture. Successful
completion of all eight labs (twice a week three-hour sections) are a
mandatory component of the course. Discussion sections will usually meet
in S14 of PAB and will be immediately followed by lab sections, which will
meet in S16 of PAB. See the map:
http://www.stanford.edu/dept/physics/academics/tutor/Varian2_subbasement.pdf
Textbook:
Physics Applications, Giancoli, 7th edition.
I will assign practice (not graded) problems and reading from Giancoli.
If you prefer to purchase a cheaper, older edition of Giancoli, that is fine
as long as you make sure you are current on the reading. However, if
you plan on taking PH23, or PH25, then you should go ahead and
purchase Giancoli’s 7th edition since that is the required text for those
courses.
Reference Books (calculus-based; available in the Huang Library):
Knight, Physics for Scientists and Engineers
Halliday Resnick and Walker, Fundamentals of Physics
Course Philosophy: The best way to master new material is by practicing it.
All components of the course will therefore be taught interactively. Since
this is a fast-paced summer course, it is essential to keep up with the
material by coming prepared, reviewing lectures daily, and keeping up with
assignments.
By the end of PH21S you should be able to:
• Apply kinematics equations to predict the trajectory, velocity, time,
distance for an object experiencing a constant acceleration
• Draw free-body diagrams depicting all the forces or torques on point
objects, extended objects, or fluids
• Apply Newton’s laws to describe the motion of an object
• Determine situations when a particular conservation law is applicable
and apply the conservation law to determine physical parameters
affecting motion
• Use kinetic theory and microscopic models to explain macroscopic
phenomenon
• Interpret pressure-volume (PV) diagrams
• Apply the laws of thermodynamics to determine whether processes are
possible
• Integrate physics principles from different parts of the course to solve
problems
Math concepts you should be familiar with
• Ratios and proportions
• Solving systems of equations (e.g. 2 (or 3) equations and 2 (or 3)
unknowns)
• Quadratic equations and their solutions
• Pythagoras’ theorem
• Basic trigonometry (sin, cos, tan, and rules associated with them)
• Vectors – addition, subtraction, decomposing vectors (see Giancoli
Chapter 3.1 to 3.3 for a refresher on vectors)
• Simple concepts of pre-calculus: slopes, positive and negative slopes,
minima/maxima of functions, and areas as integrals.
Clickers (Personal Response Systems)
We are providing clickers on daily loan to students. The clickers have unique
numbers. Pick up your assigned clicker at the beginning of lecture and
return it at the end of each day’s lecture.
Course Components
Lecture: Your responses in the reading quizzes will, for the most part, shape
the focus of the lecture for the day. Mini-lectures will be interspersed
between collaborative conceptual and problem-solving sessions. As we
move along the course, you should be prepared to integrate what we have
covered earlier and apply it to newer problems. In-class collaborative
problems and questions will be a normal part of the course. This is your
opportunity to really understand concepts covered in that particular lecture.
Active participation accounts for 5% of your grade. Participation means
different things for different personalities and includes: (a) asking or
answering questions during or after lectures; (b) contributing to the group
for instance, by explaining concepts that you understand or asking for
clarification when a concept is unclear; or (c) describing your group’s
solution or acting as “group spokesperson.”
Discussion: Discussion section will allow you to explore a concept or problem
in greater depth while working in groups of three or four. Material for section
will come from old exam problems, problems that augment ideas presented
in lecture, or tutorial style worksheets. You will turn in your pre-lab
assignments at the beginning of the discussion section. Pre-labs are graded
and account for 10% of the course grade. No late pre-labs accepted. The
lowest pre-lab score will be dropped.
Lab: Lab experiments will complement material presented in lecture or
discussion section and will provide an opportunity to apply what you are
learning in lecture. Lab will be collaborative and guided so you will often be
designing your experiments or deciding on how best to analyze your data.
Lab write-ups are graded and account for 15% of the course grade. The
lowest lab score will be dropped. Note: you MUST complete all eight labs to
pass the course.
You
MUST
attend the discussion and lab that you are enrolled in.
Reading Quizzes: I will post pre-lecture reading quizzes on CourseWork that
you should be able to answer after reading the relevant sections of the text.
Reading quizzes must be completed by 8 am of the day of the lecture in
order to receive credit. Reading quizzes, as a whole, will count towards 5%
of the course grade –the two lowest reading quizzes will be dropped.
Hour-long Exams: Material covered in the lectures, required reading,
practice problems, labs, and discussion section is fair for the exams.
Questions could be short or long answer, problem solving, multiple choice,
fill-in-the-blanks, or true-false. With multiple- choice or true-false questions,
you may be asked to explain/justify your response. These exams account
for 45% of the course grade. There are no dropped grades for the three
hour-long exams. There are no make-up exams.
Final Exam: Friday, July 18, 10:00 am to 12:00 pm in class. The
comprehensive final accounts for 20% of the course grade. No make-ups for
the final exam.
Homework: Practice problems will be posted on CourseWork by Friday;
solutions will be posted by noon on Thursday. Practice problems will not be
collected or graded but may show up in some form in exams. Therefore, do
the practice problems and make sure you understand the concepts being
covered; work in study groups; and take advantage of office hours to clarify
concepts before the Friday-exams.
Resources: In addition to our office hours, the Center for Teaching and
Learning (CTL) provides free Peer Tutoring Services in Florence Moore. On
the internet, you may also find the hyperphysics and khanacademy websites
quite useful.
Students with documented disabilities
Students who have a disability that may necessitate an academic
accommodation or the use of auxiliary aids and services in a class must
initiate the request to the Office of Accessible Education (OAE). The
OAE will evaluate the request with required documentation, recommend
appropriate accommodations, and prepare a verification letter dated in the
current academic term in which the request is being made. Please contact
the OAE as soon as possible; timely notice is needed to arrange appropriate
accommodations. The OAE website is
http://studentaffairs.stanford.edu/oae/info; their office is located at 563
Salvatierra Walk (phone 723-1066, TTY 725-1067).
The Honor Code
The Honor Code articulates University expectations of students and faculty in
establishing and maintaining the highest standards in academic work.
Examples of conduct that have been regarded as being in violation of
the Honor Code (and are most relevant for this course) include copying
from another’s examination paper or allowing another to copy from
one’s own paper; collaborating when it has been expressly forbidden;
plagiarism; revising and resubmitting a quiz or exam for re-grading,
without the instructor’s knowledge and consent; representing as one’s
own work the work of another; and giving or receiving aid on an
academic assignment under circumstances in which a reasonable person
should have known that such aid was not permitted. For more
information on the Honor Code, see
http://www.stanford.edu/dept/vpsa/judicialaffairs/guiding/honorcode.htm
In this course, you are encouraged to discuss physics issues and problemsolving strategies related to assigned problems with your classmates.
However, the solutions to the problems, labs, and pre-labs must be written
up independently. All exams are to be completed independently without any
discussion with others.
Tentative Schedule
This is a fast-paced course where we will cover essentially the first 11
chapters of Giancoli over a four-week period. This means we will cover ~
one chapter during each lecture. The reading for each day will be posted
with the pre-lecture reading quizzes.
Updates to the Reading Assignments will be Posted with the Pre-Lecture Assignments
Date
Reading / Schedule
Lab
6/23/2012
Ch 2.1 to 2.5
6/23/2012
Ch 2.6 to 2.8
Double feature!
(1:15-2:45pm)
6/24/2012
Ch 3 (Vectors are
LoggerPro familiarization; Moving
reviewed in Ch 3.1-3.3)
Man ; Graphical Interpretation
(Kinematics)
6/25/2012
Ch 4.1-4.6, Ch 7.8-7.9
6/26/2012
Ch 4.7, 4.8
Forces – Newton’s Laws
6/30/2012
Exam 1 (10-11:15am)
6/30/2012
Ch. 5.1 to 5.3
Double feature!
(1:15-2:45pm)
7/1/2012
Ch 6.1 to 6.5
Logger Pro – Video Analysis of a
jump; Graphical Analysis (Force)
7/2/2012
Ch 6.6 to 6.8
7/3/2012
Ch 6.9, 6.10
Kinematics and the Conservation Laws
(Energy Conservation Lab)
7/4/2012
Holiday
7/7/2012
Exam 2 (10-11:15am)
7/7/2012
Ch 7.1 to 7.4
Double feature!
(1:15-2:45pm)
7/8/2012
Ch 7.5 to 7.7
Ballistic Pendulum
7/9/2012
Ch 10.1-10.7
7/10/2012
Ch 10.7-10.10
Fluids
7/11/2012
Ch 11.1 to 11.4, Handout
on Elasticity
7/14/2012
Exam 3 (10-11:15am)
7/7/2012
Ch 13 (w/ handout on
Double feature!
statistical mechanics)
(1:15-2:45pm)
7/15/2012
Maxwell Boltzmann,
Calorimetry and Latent Heat
Random Walks, Diffusion
7/16/2012
Diffusion, Fick’s Law,
Osmosis
7/17/2012
Review
Physics of toys
7/18/2012
Final Exam (10a-12p)