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Chesapeake Section of the American Association of Physics Teachers
October 4-5, 2002
Radford University
Contributed papers for the Fall CS-AAPT meeting at Radford University.
All talks are in a multimedia room with Mac and PC computers; LCD and
overhead projectors; floppy, zip and CD media drives; and a connection for plugging
in laptops. If you have any questions, please email them to
Rhett Herman.
Talking with Light: Simple Fiber Optics
Thomas O'Neill, Shenandoah Valley Governor's School,
o'neill@csvrgs.k12.va.us
This project develops some simple devices for demonstrating the
transmission of signals through optical fiber (in this case PMMA). The
receiver and transmitter are built on prototype-boards using an LED as the
transmitter and an optical transistor with a simple amplifier as the
receiver. The circuit diagrams and parts list will be available as handouts
and on the SVGS website.
A FUN General Eduction Physics Course: Physics of Sports
J. Eric Goff, Lynchburg College,
goff@lynchburg.edu
Physics departments are often challenged to offer general education courses which
hold the interest of their students over an entire semester. The purpose of this
talk is to report on the successes I had when I taught Physics of Sports at
Oberlin College during the Fall 2000 and Fall 2001 semesters. In addition to having
enrollment quadruple from the first offering to the second, my course was the
subject of two newspaper articles. Successes in the course ranged from nice student
involvement, improved analytical skill in the students, and independent student work
in the form of course projects. The talk will focus on these successes as well as
course content, student assessment, and project ideas that extend beyond the course
all the way to the senior physics thesis level.
Application of amateur radio to teaching physics
Rob Edmunds, Radford High School,
redmunds@mail.rcps.k12.va.us
Hans Bethe and American Physics
William H. Ingham, James Madison University,
inghamwh@jmu.edu
Hans A. Bethe was part of what has been called the "intellectual
migration," leaving his native Germany to come to the United States as a
young man. Over the decades since his arrival, Bethe has had a profound
effect on physics and the American physics community. This presentation
recounts some of the achievements of his extraordinarily long and
productive career.
Yes, you can do particle physics experiments in the classroom
Ken Cecire, Hampton University/Quarknet,
ken.cecire@hamptonu.edu
Can your students learn some particle physics without memorizing particle names or
you hand-waving through theoretical concepts? They can, if we can overcome the
perception that particle physics experimentation is way beyond the expertise or
budget available to a high school physics teacher. Our experience in QuarkNet, a
program funded by DOE and NSF to bring particle physics into the classroom,
indicates that particle physics can indeed be introduced through meaningful
activities. Come and learn ways that students can do lab work in which they make
measurements of elementary particles and/or learn the techniques of particle
physics.
Growing up with Science and Technology in the 21st Century
Adam Niculescu, Virginia Commonwealth University,
vanicule@cedar.vcu.edu
The issue of the relevancy of what we teach and what the students should know in the
21st Century where science and technology has permeated every aspect of our life is
not a local but a global concern. We are at the point of discovering that the
traditional approach of teaching and learning will not be sufficient to prepare
students for life and career choices. New skills will be necessary for more than one
reason. The issues involved and other features will be the theme of an international
conference on Science and Technology Education to be held in Williamsburg, VA on May
30 - June 3 2003. The talk will detail some of the highlights envisioned for the
conference.
NASA EOS Aqua: Eyes on the Hydrologic Cycle
Katherine Bender and Steve Dacey, NASA Goddard Space Flight Center,
kbender@pop400.gsfc.nasa.gov,
sdacey@pop400.gsfc.nasa.gov
On May 4th, 2002, NASA's Earth Observing System launched the second of its science
observatories, Aqua. Aqua's six instruments will provide a wealth of data on many
aspects of Earth's water cycle. Katherine Bender and Stephen Dacey from the
Special Project Initiatives Office at Goddard Space Flight Center will give an
update on the satellite, and share the materials they have developed to enhance
science curricula
through the topic of satellites and the data they provide about Earth. Piloting a
new graphical user interface designed in-house to provide easy access to NASA
products, they will demonstrate how easily you, the teacher, can energize your
lessons with current scientific resources from NASA.
Global warming science in a concepts course
Frank Munley, Roanoke College,
munley@roanoke.edu
Global warming is a great topic to teach at the conceptual level. Radiation
balance, "friendly" greenhouse gases, isotopic dating, Earth oribt parameters,
feedback effects, global warming fingerprints, and computer modeling are just some
of the physics-related concepts relevant to global warming. I will discuss my
experience teaching this issue.
The Lorentz Angle and the Hubble Constant--Is the Hubble Constant Constant?
Lewis F. McIntyre; GRD, Inc. ,
McIntyreL@GRD.COM
This paper presents a derivation of the Hubble Constant using the Lorentz Velocity
Angle, developed in previous presentations by the author. This paper shows that the
Hubble 'Constant' thus derived should in fact vary as a function of distance
H=1/(cT-x), where T equals the age of the universe, and that T should be twice the
maximum observable distance in the Universe. The geometry developed demonstrates an
intuitive approach to the expanding universe, assuming only collocation at T=0.
Introducing Renewable Energy - Photovoltaics, into Applied Physics Courses and
the Advanced Physics Laboratory
Gerald R. Taylor, Jr., James Madison University ,
taylorgr@jmu.edu
A unit on photovoltaics has been integrated into an undergraduate calculus-based
thermal physics course for integrated science and technology students and into the
advanced physics laboratory as an applied physics experiment for majors. The unit
introduces solar energy and energy production using photovoltaic cells, their
current-voltage characteristic, their efficiency, and quantum efficiency. In the
advanced physics laboratory students are given the opportunity to undertake a
semi-opened experiment to electrically characterize photovoltaic panels, their
electronic characteristics, and their efficiency as a function of incident photon
wavelengths. A review of the photovoltaic unit, the experiment, and my experience
teaching these courses will be presented.
Analytic Solutions, Wien's Displacement Law, and Lambert's W Function
Walter S. Jaronski, Radford University,
wjaronsk@radford.edu
There will be a number of intertwined themes in this talk: (a) the meaning and
usefulness of analytic solutions vis-à-vis numerical or algorithmic solutions; (b)
using upper-level physics to teach uncommon mathematics; (c) an expression for
Wien's displacement law constant derived using Lagrange's inversion theorem; and (d)
"analytic" is in the eye of the beholder - the W function. The larger question
which will be raised is: "In this age of the ubiquitous computer and the ever more
sophisticated symbolic math program, what importance should we place on training our
students in classical analytic methods?"
A Decade of Workshop Physics
James A. Warden, Emory and Henry College,
jawarden@ehc.edu
Our physics department of two adopted the curricular materials of Dr. Priscilla Laws
for our two-semester General Physics course ten years ago. Dr. Duffy and I believe
that the workshop approach serves both majors and non-majors well. However, we have
found that both the approach and the pedagogy have needed to evolve to solve a
number of problems with apparatus, departmental constraints, and student attitudes.
This paper will share our experiences and invite your comments.
Finding New Uses for Physics Hardware with MBL Tools
Tyrone Jackson and Arthur Reynolds
(Mentor: James Toy), BEST Lab/Physics, Norfolk State University,
sold_out@hotmail.com,
precise_24@yahoo.com
(jltoy@nsu.edu)
The interfaces, probes, and software of any microcomputer based laboratory system
provide generalized tools ideal for inquiry-based learning. At Norfolk State
University, as we move toward a fully research-based guided inquiry laboratory
curriculum, we are seeking ways of integrating elaborate (and expensive!)
experimental systems with a consistent MBL approach. Efforts to do this with
several different Pasco systems for studying rotational dynamics and oscillations in
combination with Team Labs Thinkstation MBL will be discussed.
Search For Extragalactic HII Regions and Supernovae Remnants
Jedidah C. Isler, BEST Lab/Physics, Norfolk State University;
Guy Mentor, South Carolina State University;
Patrick Michel, City College of New York;
Mentor: Donald K. Walter, South Carolina State University;
jedidahisler@hotmail.com
HII regions and supernovae remnants (SNR) have been identified in the NGC 6946
galaxy. Optical spectra were analyzed to determine whether features in the NGC 6946
galaxy were SNR or HII regions. The energy source for the ISM is UV or X-ray photons
from a hot star (O, B, white dwarf, neutron star) causing ionization that leads to
recombination and/or excitation. Supernovae explosions also include a shock wave
front that further compresses the ISM atoms in the gas, and thereby increases the
density and the number of collisional excitations and deexcitations per unit time.
The light from these processes is captured by the telescope then it falls through a
spectrograph and is broken down into its component wavelengths. Since the light is
not obstructed in any way, it also contains spatial information. The spectral and
spatial information from this galaxy was recorded onto CCD images, where it was
analyzed line by line, and then visually inspected for signs of emission. Once an
object of interest was identified, the composite rows were further analyzed using
the splo t IRAF application. A total of twenty-four emission spectra from objects of
interest were analyzed; twenty-one HII regions were identified; and three SNRs were
confirmed. Future work will include additional object spectra analysis, result
tabulation, and wavelength and flux calibrations. The analyzed and calibrated data
will then be compared with radio data from the objects for further study.
*This work was funded by NASA Grant # NCC-5-534
Novel X-Ray Zone Plate Design Evaluation Using Visible Light Model
Ayisha Fullerton, BEST Lab/Physics, Norfolk State University;
(Mentor: Alexander Liddle, Center for X-Ray Optics, Lawrence Berkeley National
Laboratory)
ayishafullerton@hotmail.com
Zone plates have been essential to the advancement of X-Ray microscopy. Since
refractive lenses utilized in optical microscopes are not applicable to X-Rays, zone
plates are used. The purpose of this investigation includes designing and
constructing a visible light analogue of the X-Ray microscope at Lawrence Berkeley
National Laboratory (LBNL) for testing, educational purposes, and enabling the
exploration of novel zone plate concepts such as photon sieve. Currently, the XM-1
at LBNL can resolve features as small as 25nm. However, novel zone plate designs
that relax the fabrication requirements are predicted to resolve features half that
size. The resolution of the X-Ray microscope is dependent on the wavelength of
light (?) and the numerical aperture (NA) by the equation: ?/NA. In conventional
zone plates the numerical aperture is dependent on the width of the outermost zone,
which is limited by the fabrication process. Decoupling the dependency of the
numerical aperture to the width of the outermost zone would eliminate the resolution
dependence on the fabrication and potentially allow for better resolutions.
Decoupling this dependency using novel zone plate designs is therefore an important
goal of this work. Results for different designs have been obtained and will be
presented. The most effective designs could be implemented to improve the resolution
of the X-Ray microscope at LBNL.
Master of Arts in Physics Education (MAPE) Program
R. A. Lindgren and S. T. Thornton, University of Virginia,
ral5q@virginia.edu,
stt@virginia.edu
Seventeen teachers have completed the Master of Arts in Physics Education degree at
the University of Virginia since the program began in 1999, and over 20 teachers are
currently enrolled. The program is directed towards in-service high school teachers
who do not have an undergraduate degree in physics, but desire to teach physics.
The core courses are calculus based with labs including considerable conceptual
inquiry and problem solving. These courses are taught in two summers, each lasting
four weeks. The best teachers serve as assistants in class and as
tutors-in-residence in the dorms. The remaining classes are earned through distance
learning during the academic year and are accomplished via videotapes and the
Internet using proctors and home based delivery systems such as physlets, WebAssign,
email, chat rooms, and streamline video. Teachers obtain the 30 hours needed for
the Masters degree within 2 1/2 years while maintaining their current teaching
position.
Physics principles in one demo
Ahmad Halim, Wilson High School,
eagle1_travel@saudia.com
Many physics principles can be explained in one demo. For example, using air
pressure as a primary mover for air. The energy stored in the air is converted into
kinetic energy to turn a turbine. The rotation of a turbine in a magnetic field
results in the generation fo electricity. There will be a live demo during this
presentation.
Importance of satellite imagery in the classroom
Dan Blake, Radford University,
dblake@radford.edu
A brief survey of different aspects of the use of satellite imagery in classrooms at
all grade levels is discussed. The presentation highlights some of the different
ways that imagery can be useful to all age groups. Showing demonstrations ranging
from explaining solstices, lake effect snow, and even calculating the distance
between satellites and the moon, it emphasizes that the real need is in having
suitable technology to accomplish the task.
A semester project for electricity in introductory physics--some
examples
Rhett Herman, et al, Radford University,
rherman@radford.edu
This talk will feature students from last year's second semester of the General
Physics class showing their "home wiring" projects. In these projects, the students
had to create individual "rooms" within "apartment houses" that were really
inexpensive metal unitlity shelves. This project has proven to be a great success in
terms of student learning as well as student enjoyment.
Demonstrations for the Fall CS-AAPT meeting at Radford University.
Cheap Toots: Demonstrations of the harmonics in blown PVC tubes and whistles.
Bob Williamson, Oakland University Emeritus ,
Williamson23@aol.com
Dick & Rae: Fluid Flow and Arterial Disease
Rae Carpenter and Dick Minnix, VMI (retired),
rae@cfw.com>,
dickm@rockbridge.net>
The UVa Electroscope
Richard A. Lindgren, University of Virginia,
ral5q@virginia.edu
Astrophotos using a digital camera and a telescope--how to adapt
Rhett Herman, Radford University,
rherman@radford.edu
For more information about the fall meeting, use any of the following
methods to contact me:
| snail mail | phone/email |
Dr. Rhett Herman
Associate Professor of Physics and
Adjunct Professor of Geology
Dept. of Chemistry and Physics
135 Curie Hall
Radford University
Radford, Virginia 24142 |
(540)831-5441 (office)
(540)831-6443 (department)
(540)831-6615 (fax)
e-mail:rherman@radford.edu
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