Physical Science 14 Lab
Ticket Number 3348
6:50 – 8:55 P.M. Thursdays Room: Instr-2014
Instructor:................ Professor Charles
Mallory
Email:........................ charles.mallory@ieee.org
Web Address: ......... http://www.TheMalloryFamily.net
This location will contain
laboratory experiments, handouts and study guides.
Office Hours:........... 6:30
– 8:00 PM Mondays & by arrangement
Required Materials:
·
Scientific
Calculator (YOU WILL NEED THIS!!!)
·
Laboratory
Notebook – Comp Book
·
Laboratory Manual for Physical Science 3rd
Edition,
Said Pazirandeh (Available for download
on the web at http://profpaz.com, http://www.themalloryfamily.net and
at the bookstore)
SLO:................................ Student Learning
Outcomes (SLO).
1.
Apply
the scientific method to identify a hypothesis and perform experimental
procedures to prove or disprove the hypothesis.
2.
Construct
graphs based on given data, describe the trend and predict other data points
from the graph.
3.
Perform
laboratory techniques safely and accurately and maintain a laboratory notebook
according to standard scientific guidelines.
Laboratory
Reports:...... Laboratory reports
are due
one week after the completion date of the experiment. Late reports will be subject to a 25% per
class meeting late penalty.
Laboratory
Exams:........ Two exams will be
given on the scheduled date only. These
laboratory exams will be closed book, closed notes with the only resource being your laboratory composition
book! Failure to take the Final Exam will result in an automatic fail
in the course.
Laboratory
Notebook:... The laboratory
notebook is used for your data and it is your best friend. Anyone
not having the laboratory notebook before the second day of class will be
excluded from the laboratory. All
notes MUST be taken down in the laboratory notebook.
Safety
Goggles:............. During the Chemistry
experiments, unless specifically told by your instructor, you must ALWAYS wear
safety goggles while in the laboratory.
Failure to wear safety goggles will dismiss you from the laboratory.
Safety
Rules:.................. Failure to follow the
safety rules will result in your dismissal from the laboratory. Safety is the responsibility of all persons
within the laboratory. Make sure you
read the Safety Rules and Regulations and follow all guidelines.
Attendance:.................... This will be taken
each class and will count for 5% of your final grade. Please be aware that if you stop coming to
class it will be your responsibility to drop the class. If you
stop coming to class and do not take the final you will have earned an “F” in
the class.
Grade Breakdown:........ Your final grade is
based upon the following breakdown:
Laboratory
Reports 55%
Laboratory
Notebook 20%
First
Laboratory Exam 5%
Second
Laboratory Exam 15%
Attendance
5%
Grading: ......................... The grading
will be performed on a semi-modified curve.
The grade you will earn will be based on the following scale:
A 90% - 100%
B 75% - 89%
C 60% - 74%
D 45% - 59%
F 0% - 44%
I guarantee that you
will receive at least the above grade if not higher due to class
performance. You will be provided with
the grades periodically during class through the email address you provided
during registration.
|
Tentative Lecture Schedule |
Date |
Day |
Experiment |
Material |
|
September 1, 2011 |
Thursday |
Handout |
Introduction,
Review of Safety Rules, Review of Notebooks, Significant Digits & Graphing
handout |
|
|
September 8, 2011 |
Thursday |
1 |
Using
Graphs |
|
|
September 11, 2011 |
Friday |
Last
day to add classes |
||
|
September 15, 2011 |
Thursday |
2 |
Density
of Liquids and Solids |
|
|
September 22, 2011 |
Thursday |
3 |
Velocity
and Acceleration |
|
|
September 23, 2011 |
Friday |
Last
day to drop classes without receiving a “W” |
||
|
September 29, 2011 |
Thursday |
4 |
Vectors
and Equilibrium |
|
|
October 6, 2011 |
Thursday |
5 |
Simple
Pendulum |
|
|
October 13, 2011 |
Thursday |
First
Laboratory Exam (experiments 1, 2, 3 & 4) Notebooks
due for grading |
||
|
October 20, 2011 |
Thursday |
-- 6 |
(Notebooks
Returned) Energy
of Falling Bodies |
|
|
October 27, 2011 |
Thursday |
9 |
Comparing
Indices of Refraction |
|
|
November 3, 2011 |
Thursday |
Handout |
Paper
Chromatography |
|
|
November 10, 2011 |
Thursday |
7 |
Specific
Heat and Calorimetry |
|
|
November 17, 2011 |
Thursday |
11 |
Physical and Chemical
Properties and Changes |
|
|
November 18, 2011 |
Friday |
Last
day to drop classes with a “W” (Letter grade is required from this date
forward) |
||
|
November 24, 2011 |
Thursday |
Thanksgiving
Holiday – College Closed |
||
|
December 1, 2011 |
Thursday |
13 |
Identification of Unknowns |
|
|
December 8, 2011 |
Thursday |
Final
Laboratory Exam (experiments 5, 6, 7, 9, handout & 11) Notebooks
due for grading |
||
(Note:
Your Notebooks will be graded using this criterion.)
1. Always
write in ink. (NO PENCIL!)
2. Write
only on the right-hand side of the page.
(The left-hand side of the page should be used for calculations, notes,
etc…)
3. Number
all right –hand pages in the upper right-hand corner.
4. Just
beneath the page number indicate the date on which the laboratory work was done. When the experiment work is done on two
different dates, indicate the second date (right –hand margin) at the point
where the second day’s work begins.
5. The
laboratory notebook is an original permanent record. This means several things:
a You
must write down all data directly (in ink) in the lab notebook. There will be a grade penalty when a student
disregards this rule. (The rule means: no writing in pencil; no writing on the lab
report sheet, on pieces of paper, etc…)
b. There will be no erasures, no “white
out”, and no missing pages. One thin
line may be used to cross out offending material. (Later you may discover that you need this
information and this way you can retrieve it!)
c. Never Remove a Pager from the
Laboratory Notebook. (At some points
this practice could have legal implications; patent fights are won and lost on
the legitimacy of lab notebooks.) If you
do make a dreadful error and would like to remove a page, do the following:
draw a diagonal line across the entire page.
d. Holes and spots from chemical spills
are legitimate artifacts; do not worry about them.
Format for the Laboratory Notebook
1. Leave
one or two pages at the beginning for a Table of Contents. On this, list each experiment title (as you
perform the experiment) and in a column at the right of the page, give the page
number where the experiment write-up starts.
2. Begin
each experiment on a fresh right-hand page.
Each write-up includes:
a. Title: At the top of the page give the title of the
experiment.
b. Page number and date: At the top right-hand of each page.
c. Purpose: Describe what you are doing and why. Describe what information you are attempting
to gain by doing this experiment.
d. Procedure: Give references to
the location of the procedure in the text and any deviations from the procedure
in the text.
e. Data: This includes all the
observations, measurements, etc… that you make in the laboratory. The data should be presented in tabular
form. Check the report sheet to get
ideas from the types of tables that are helpful for presenting data for that
particular experiment.
f. Results: These include all the
things that you have calculated from the data.
Note: results are not
calculations, but calculations based on data give results.
g. Discussion & Conclusions: A short paragraph discussing the results of
the experiment. This section should
answer the questions from the “Purpose” above.
This is the place to mention significant sources of error and the effect
they have on the results
Laboratory Safety is Not Just the Responsibility of
the Instructor.
It is the Responsibility of Everyone.
While Working in the Laboratory,
And to
Conduct Your Laboratory Work in a Safe Manner at all times.
The Laboratory Instructor will review
the following Safety rules and regulations with you and will point out the
location and operation of the fire extinguisher, safety shower, eyewash, and
other laboratory safety equipment available.
1. While
in the chemistry laboratory, you must wear approved safety goggles, wear shoes,
confine long hair, and confine combustible clothing at all times. You will be working with chemicals that will
stain clothing if you or your classmates are not careful, you may want to
invest in a lab jacket.
2. You
are not allowed to ear, drink, or smoke in the laboratory.
3. Before
beginning work in the laboratory you should be familiar with the procedures you
will be following as well as any special precautions or changes that the
instructor may note. Report any
unexpected events to the instructor immediately.
4. No
unauthorized experiments may be performed.
Violators will be subject to disciplinary action. Do NOT begin any experiment without
the instruction in the classroom.
5. Before
leaving the chemistry laboratory, be sure to wash your hands carefully.
6. In
the event of an accident, the laboratory instructor should be immediately
notified.
a. If you receive a chemical burn,
immediately flood the area with cold water while another student summons the
instructor.
b. Treatment for injuries may be obtained
only from qualified medical personal.
Example Sig. Digits Sci-Notation 1 All
non-zero digits are significant 1.589 4 1.589E+00 0.897 3 8.97E-01 36000 2 3.6E+04 2 Significant
Zero's a All
sandwiched zero's 13.02 4 1.302E+01 1.0002 5 1.0002E+00 10.5 3 1.05E+01 b All
trailing zero's preceded by a digit 5.000 4 5.000E+00 to the right of the decimal point. 20.000 5 2.00000E+01 15.00 4 1.500E+01 3 Non significant Zero's a Leading
Zeros 0.0200 3 2.00E-02 0067 2 6.7E+01 b Trailing
Zero's to the left of the decimal 56000 2 5.6E+04 point
in a number without a decimal 1360 3 1.36E+03 point *NOTE:
Write the numbers in exponential notation if you have any doubt. All zeros used to indicate the power of
10 (order of magnitude) are not significant.
1 If
the last digit to be retained in a number is followed by a number less
than 5 (<5), ROUND
DOWN. Round
to 3 significant figures: 28.23 rounds to 28.2 578.1 rounds to 578 2 If
the last digit to be retained in a number is followed by a number
greater than 5 (>5), ROUND
UP. Round
to 2 significant figures: 5.998 rounds to 6.0 0.00258 rounds to 0.0026 3.6502 rounds to 3.7 3 If
the last digit to be retained in a number is followed by 5 (0000000…
implied), ROUND the last
digit retained to an EVEN NUMBER. Round
to 2 significant figures: 1.75 rounds to 1.8 1.050 rounds to 1.0 1.45 rounds to 1.4 Round
to 4 significant figures: 67.835 rounds to 67.84 67.885 rounds to 67.88
Calculations
Uncertainty and Significant Figures
The
Leaset Accurate Number (LAN) determines the number of digits to
which the answer is expressed.
1. The LAN is
the number with the least number of digits following the decimal point.
2. The answer (sum or difference)
can have no more digits following the decimal point than the LAN.
Example:
What is the total mass
of a mixture made by mixing the following substances?
212 g water (LAN)
1.8 g
salt
1.88 g
sugar
____________________
215.98 g (incorrect)
216 g (correct)
1. The LAN is the number with the least
number of significant figures.
2. The answer (product or quotient)
can have no more significant figures than the LAN.
Example:
Calculate
the volume of a rectangular solid that has a length of 4.16 cm, a width of 2.2
cm, and a height of 2.00 cm.
Volume = Length x Width x Height
Volume = (4.16cm) (2.2cm) (2.00cm)
LAN
Volume = 18.304 cm3 (incorrect)
Volume = 18 cm3 (correct)
Code of Academic Honor and
Integrity
Los
Angeles Mission College
Departments
of Physical and Life Sciences
Students at Los Angeles Mission
College, because they are members of an academic community dedicated to the
achievement of excellence and the pursuit of honor, are expected to meet high
standards of personal, ethical, and
professional conduct. These standards require personal integrity and a
commitment to honesty. Without the ability to trust in these principles, an
academic community and a civil society cannot exist. Los Angeles Mission
College students and faculty are as committed to the development of students
with honesty and integrity as they are to the academic and professional success
of its students.
The Academic Code of Honor and Integrity is an undertaking of the
students, both individually and collectively, that they will:
1. Not give or receive unpermitted aid during
exams, quizzes or assignments
2.
Not give or receive unpermitted aid in
assignments, reports or any other course work that is to be used by the
instructor as a basis for grading.
3. Do their share and take an active part in
upholding the spirit and letter of the Code of Academic Honor and Integrity.
Some examples of
conduct that are regarded as being in violation of the Academic Honor Code
include:
·
Copying from another’s examination or
quiz, or allowing another to copy from one’s own papers
·
Using any unpermitted source of
information, human or other, during an exam, quiz or assignment that influences
the grade; this includes the use of technological devices
As a part of
the effort to promote and instill an environment of honesty and integrity
during quizzes and examinations, the following guidelines will apply for any
courses in the Departments of Physical and Life Sciences:
1. Students will
leave all books and all other non-essential items (e.g. paper, electronic
devices) on the floor or inside their backpacks so that they are not useable nor
block the sight line between professor and student. No electronic devices will
be in reach.
2. Students will not communicate in any way
that will dishonorably assist themselves or another student.
3. Students will
leave the room during an exam only if permitted by the professor’s
policy. If permitted, only one student may leave the room at any time and
be gone for only the average length of time needed for the stated
purpose. Students will leave all purses, bags, books, phones, jackets,
etc., in the classroom during the absence.
4. Students will
promote the spirit and letter of the Code
of Academic Honesty and Integrity
by dissuading fellow students from dishonest activity and, when such casual
persuasion does not work, informing the professor of the possible dishonest
activity, either anonymously, or otherwise.
5. Students will
make every effort to avoid the appearance of dishonesty or lack of integrity
Violation of this
policy will not be tolerated and violators will be subject to penalties. The
success of the Code of Academic Honor and Integrity is based upon the
collective desire of students, faculty and the community to live in an
environment that embraces respect for that which is right – both in the college
and in society as a whole.
I have read and
understand the Code of Academic Honor
and Integrity and will abide by both its intent and its spirit:
Name
(print) _____________________________
Signature ____________________________ Date
____________________