Physics 231 Fall 2015
Prof. Walter Wimbush
6526 NVWIMBW@NVCC.edu
phone 703-845-
Text: Young and Friedman, University Physics 13th ED, Pearson, 2014. With Mastering
Physics
www.masteringphysics.com
Laboratory Text: Wimbush, Lab Manual for 231-232, web page:
www.nvcc.edu/home/nvwimbw
References: the film series of lectures referred to as the Mechanical Universe can be accessed
via the web: at http://www.learner.org
you will be required to “sign in” for free access to
films. This is an excellent source of information in an entertaining environment. You should
avail yourself of these lectures
whenever possible.
You can get video tutoring from these web sites:
http://www.hippocampus.org
http://www.brightstorm.com/physics
http://www.khanacademy.org
And a nifty site to do calculations. . . like a powerful computer
http://www.wolframalpha.com
Attendance: Students are expected to arrive on time and to attend all lectures and laboratory
sessions. Students are responsible for all material covered in either the textbook or in the
lectures. If you miss a lecture, you should get the material from another student.
Classroom etiquette: All cell phones and pagers are to be turned off prior to class. Students are
to arrive on time for class.
Withdraw/Audit Grades: No audit will be permitted after Sept. 10. Last day to withdraw with
tuition refund : Sept 10. No withdraws will be permitted after the last day to withdraw, Oct.
30. Students who miss three consecutive lectures may be withdrawn from class.
The last day to withdraw with a grade of "W" is Nov. 2.
You are responsible for withdrawing yourself from the class.
Exam Policy: There will be six "hourly" exams and one comprehensive "2-hour"
exam.. There will be NO make-up exams. If you miss an exam, you may take a
second version of the exam in the testing center one week from the date of missed
exam. Do not miss two exams. Some formulas will be provided by the
instructor. You need only bring pencils, pen, and a working calculator with
you to the examination. Any indication of cheating will result in a grade of zero
for the exam. The second episode of cheating will result in a grade of “F” for the
course.
Grading Policy: A = 90 - 100% B = 80 - 89% C = 70 - 79% D = 60 - 69%
Final % = 65%(lect.) + 20%(lab) + 15%(homework)
Comprehensive final 150 pts
Exams 400 pts
Lab 150 pts
Special Needs and Accommodations: Please notify the instructor of any special problems or needs at the beginning
of the semester. If you are seeking accommodations based on a disability, you must provide a disability data sheet,
which can be obtained from the counselor for special needs, who is located in Room 148 of the Bisdorf Building,
telephone number 845-6301.
The Academic Center for Excellence (ACE) and the Academic Center for Reading and
Writing (ACRW) provide free peer tutoring and reading and writing assistance. ACE and
ACRW are located in AA229. For more information or to schedule an appointment, stop by
(AA229), call them (703.845.6363), or visit them online:
http://www.nvcc.edu/campuses-and-centers/alexandria/campus-resources/academicsupport/index.html.
Lecture Schedule: No class on following days: Sept. 8, Oct. 12-13 Nov. 25-30
Monday Aug. 24
Ch. 1: Vectors HW 1: 1.4, 1.11, 1.15, 1.23, 1.31, 1.35, 1.45, 1.47,
1.58, 1.68, 1.101
Wednesday Aug. 26
Ch. 2: Motion 1-D HW 2: 2.8, 2.22, 2.28, 2.39, 2.44, 2.53, 2.54, 2.59,2.64,
2.80,
LAB: Uniform Acceleration
Aug 31
cH: 3: motion 2&3 Dim HW 3: 3.4, 3.8, 3.16, 3.27, 3.29, 3.35, 3.36, 3.47, 3.84,
3.87
Sept 2
Ch. 4: Force Hw 4: 4.2, 4.7, 4.10, 4.19, 4.23, 4.28, 4.38, 4.39,
4.54, 4.58
Lab: Addition of Vectors
Sept. 9
Exam 1
Kinematics and Vectors ch. 1,2,3
Lab: Newton’s Second Law
Sept 14
Ch 5: Using Newton’s Laws Hw 5: 5.8, 5.15, 5.34, 5.42, 5.46, 5.72, 5.73,
5.92, 5.98, 5.119
Sept. 16
Uniform circular motion
Lab: centripetal force (Goggles)
Sept 21
Exam II – Ch. 4 – 5
Sept 23,
Ch. 6: Work Kinetic Energy HW 6: 6.3, 6.8, 6.15, 6.33, 6.37, 6.56, 6.74, 6.76,
6.85, 6.99
Lab: conservation of energy
Sept 28
Ch. 7: Potential energy, HW 7: 7.4, 7.9, 7.10, 7.11, 7.16, 7.23, 7.30, 7.35,
7.36, 7.39, 7.45, 7.51, 7.55, 7.63
Sept 30
Ch. 7: conservation of energy
Lab conservation of momentum
Oct. 5
Ch. 8: Momentum & collisions HW 8: 8.7, 8.8, 8.13, 8.21, 8.29, 8.36, 8.41, 8.42,
8.44, 8.47, 8.49, 8.51, 8.53, 8.62, 8.106
Oct 7
Exam III – Ch. 6 – 8 Lab: Conservation of Momentum 2 - dimensions
Oct 12
day off
Oct 14
Ch. 9: Rotation HW 9:9.3, 9.4, 9.7, 9.11, 9.15, 9.18, 9.24, 9.30,
9.34, 9.49, 9.60, 9.61, 9.84, 9.95
Lab: Moment of Inertia (lab GOGGLES)
Oct 19
Ch. 10 Rotational Dynamics HW 10: 10.3, 10.10, 10.27, 10.33, 10.37, 10.43, 10.46,
10.49, 10.57, 10.70, 10.76
Oct 21 Ch 11: Equilibrium & Elasticity HW 11: 11.11, 11.13, 11.19, 11.31, 11.40, 11.53, 11.56, 11.76, 11.79, 11.2
Lab: Torques
Oct 26
Exam IV - Ch. 9 – 11
Oct 28
Ch 12: Fluids HW 12: 12.4, 12.11, 12.31, 12.35, 12.44, 12.59, 12.74, 12.90
Nov 2
Nov 4
Gravitation Hw 13:13.5, 13.19, 13.26, 13.32, 13.57, 13.59, 13.71
Ch. 14: Periodic Motion
14.40, 14.45, 14.57, 14.60, 14.94
Lab: Simple Harmonic Motion
HW 14: 14.4, 14.7, 14.11, 14.19, 14.21, 14.27, 14.36,
Nov 9
Ch. 14: Periodic Motion
Nov 11
Ch. 14 Exam
IV Ch 12-14
Nov 16
Ch. 17 Temperature & Heat Hw 17: 17.2, 17.8, 17.11, 17.14, 17.26, 17.30, 17.38, 17.41,
17.51, 17.62, 17.67, 17.75, 17.85
Lab: Ideal Gas Law
Nov 18
Ch 18 Thermal Properties Hw 18: 18.1, 18.7, 18.12, 18.32, 18.38, 18.41, 18.47,
18.51
Nov 23
ch. 19 first law of thermodynamics hw 19: 19.1, 19.3, 19.5, 19.8, 19.21, 19.31, 19.39,
19.41
Lab: Specific Heat Capacity
Lab: Latent heat (lab GOGGLES)
Nov 25
THANKSGIVING HOLIDAY
Nov 30
Ch. 20: 2nd Law Thermodynamics HW 20: 20.1, 20.5, 20.9, 20.13, 20.23, 20.33
Dec 2
Ch. 20
Dec 7 Review for Final
Dec 9
Lab: Gas Laws (lab GOGGLES)
Dec 14
Final Exam
LABORATORY
The lab report should include:
1. Abstract: A brief statement of what the experiment "proves" and the validity of the method
or procedures used.
2. Theory: Derive the formulas used in the experiment.
3. A labeled diagram of the apparatus. (labels in ink artwork in pencil)
4. procedure:Should be written in 3rd person, passive voice, past tense example: The
thermometer was read in three minute intervals and the value recorded in table II. (do not write
“I read the thermometer” or “read the thermometer every three minutes.”)
5. Data tables: (data in pencil; labels and lines separating columns and rows in ink)
Graphs: (labels, scales for x- and y - axis: in ink , curve in pencil) Best done on Excel
6. Determination of experimental Error.
7. Conclusion:
Laboratory Schedule
All safety regulations will be enforced! You will be responsible for purchasing
you own safety goggles and having them in class. Sandals will not be permitted
in the laboratory. Anyone not obeying these rules will be told to leave the
lab. You will forfeit the credit for that lab.!!!
You will turn in data sheets complete with calculations (excel is available
on the computers). Use Microsoft word to include a statement of the purpose, theory, procedure
and a conclusion summary with your data sheets. You must indicate all of your lab partners on
the report!
Date Experiment
Experiment #1 :Density
Uniformly Accelerated Motion
Addition and Resolution of Vectors
Newton's Second Law
Centripetal Force Goggles are required
Linear Momentum or Ballistic Pendulum
Torque
Moment of Inertia
2-dimensional collisions
Conservation of Energy ?? for newton's second law: measure air friction due to different shaped
objects attached tothe glider.
for moment of inertia: use the digital apparatus measure angular momentum
conservation of angular momentum etc.
for pendulum measure: measure damping
Hooke's law and Simple Harmonic Motion
Gas Laws
Goggles are required
Specific heat and latent heat Goggles are required
Each group will turn in a data sheet with calculations at the end of each lab to be checked by the
instructor. Then, each individual will take a small quiz on the lab, its calculations, its
conclusions, and its methodology. There will two lab reports, which will be done independently
and submitted one week after the lab.
Instructions for Completing Laboratory Reports
During an experiment you are to record your data in a laboratory notebook. This notebook contains the actual
measurements and preliminary calculations and must be handed in at the end of the semester.
One week from the day of performing the experiment you are to hand in a laboratory report. For most of the
experiments the report is an informal laboratory report, but for two reports will be formal laboratory reports.
A. Informal report. This report should begin with a description of the principle or phenomena that was
investigated during the experiment. It should include a labeled diagram of the apparatus. It should include the data,
a sample calculation, tables, and graphs. It should end with a conclusion which is a statement describing what
principles or phenomena that was actually verified by the data.
B. Formal report: (This report is to be typed) A sample lab report can be found on my web page.
The report should contain:
***On the First Page***
Your Name
Title of Experiment
Date of performing experiment
Names of lab partners
1. Abstract: A brief description of the experiment and the results obtained. (approximately 4 or 5 sentences). State
your Hypothesis and how you intend to “prove it” with his procedure.
***On the remaining Pages***
1. Introduction: Description of the Principle, Law, or phenomena under investigation; this should include any
derivation of mathematical formula used.
2. Labeled Diagram of apparatus
3. Procedure: Describe the experimental method and discuss how the procedure corrected measured what was
stated, and how these measurements support the theory. (a statement of what was done during the experiment, use
the third person, passive voice, past tense…”The air tract was leveled by adjusting the screws until the glider did not
slide down the track.”
4. Results. Make a clear connection between your data and the intended principle being verified. All tables must
have titles and all graphs must have captions.
5. Conclusion: Discuss the how the data in your experiment verifies the physical principle.
6. References. If you use any textbooks or reference books or web pages while writing your report, please cite
them, and include a bibliography at the end.