COURSE OUTLINE PHY 111
Physical Science
Concepts
Required
Texts:
Bragg,
Melvin |
On Giants'
Shoulders: Great scientists and Their Discoveries |
John Wiley
& Sons 1998 |
Alfare,
Carlo |
Physical
Science Concepts: Course and Laboratory Manual |
MCCC, 8th
Edition 2018 |
Catalog
Description:
A survey of fundamental
ideas in the physical sciences, appropriate for students not
majoring in science, mathematics or engineering. Attempts to establish a
broad awareness of the evolution and present scope of human knowledge of the
physical world focusing on nature's basic forces and structures. Emphasis
is given to technological applications of knowledge, and to social concerns
generated by scientific progress. Topics include: measurement,
motion, forces, (gravitational, electromagnetic, and nuclear), astronomy,
light, sound, atomic structure, molecular structure, crystal
structure, nuclear structure, and numerous technological
application.
Prerequisite: Placement out of foundations MAT and
ENG courses.
Carlo
Alfare
Course Coordinator
and Professor of Chemistry
E-mail: alfarec@mccc.edu
Web: http://www.mccc.edu/~alfarec
Michael Dorneman
Professor of Chemistry
E-mail: dornemam@mccc.edu
Web: http://www.mccc.edu/~dornemam
TABLE OF
CONTENTS
Course
Outline: |
1 -
26 |
General
Information |
1 |
Philosophy of the
Course |
3 |
Grading
Procedures |
5 |
Topical
Outline |
6 |
Independent Study
Report |
8 |
Performance
Objectives |
9 |
Specific Course
Objectives |
9 -
26 |
Lecture
Notes: |
27
-270 |
#1 Introduction and
Measurement |
27 |
#2
Motion |
51 |
#3 The Gravitational
Force |
73 |
#4
Astronomy |
93 |
#5
Electromagnetism |
127 |
#6 Electromagnetic
Radiation and the Nature of Visible Light |
149 |
#7 Atomic
Structure |
169 |
#8 Bonding and
Molecules |
193 |
#9 Heat,
Temperature, and the States of Matter |
223 |
#10 The
Nucleus |
243 |
Additional
References |
271 |
People in
Science |
273 |
Grade Record
Keeping Chart |
274 |
Laboratory
Manual |
277 |
Laboratory Manual
Table of Contents |
279 |
Philosophy of
the Course:
Science concepts courses
are intended to provide a broad and useful introduction to various science areas
for students not majoring in science or technology. The course is designed to teach the student about nature and the physical universe as it is presently understood by modern, mainstream scientists.
Physical Science Concepts
is designed to stimulate your interest and improve your understanding of a
variety of related subject areas in the broad realm of Physics and
Chemistry. Factual material will be presented with considerable discussion
of the technological developments, political concerns, and sociological
consequences of the topics considered. A historical perspective will be
important to our understanding. It is hoped that your curiosity
concerning scientific endeavors and your concern for their consequences
will be enhanced. Ten years hence, when you have forgotten many of the
specific facts, you may retain a new outlook on the world.
Quizzes and
Examinations:
Laboratory quizzes will be
given in tha laboratory. No
make-up quizzes will be given. Each quiz will consist of five multiple choice questions based upon
the labs completed in the previous week. If the laboratory was
missed, or not made up, it is suggested that as much of the laboratory be
completed as is possible (at home and with the help of your laboratory partner)
before the quiz is taken. Your lab instructor can also be consulted for
help.
Two hourly examinations
will be given during the semester. Specific dates and locations for these
examinations will be announced at least one week in advance. It is your
responsibility to be present at all the examinations and the final
examination. The course final examination will be comprehensive and will
occur in the 16th week of the semester. An unexcused absence will
constitute a zero score on any exam or quiz. This will automatically occur
if the course coordinator is not contacted within 48 hours of a missed exam, or
beforehand if that is possible (eg. illness).
If you read the objectives
and Study Questions, you should be able to figure out most of the questions that
will appear on exams.
You must have your ID card and schedule to take a quiz or exam.
Laboratory
Manual and Reports:
The Laboratory Manual,
along with your data, results, graphs, diagrams, and answers to questions will
constitute a useful text and guideline for the course, quizzes and
examinations. The laboratory reports will be collected weekly and graded
(5 points each). They are due immediately at the end of the
laboratory in which they are performed. None will be accepted later.
They will be graded and returned in the following class so that you
have them to study for the quiz. A student who arrives late may not be allowed to participate in the laboratory.
Mercer's
Academic Integrity Policy:
Academic integrity is violated when a
student:
- Uses or obtains unauthorized assistance in
any academic work.
- Gives fraudulent assistance to another
student.
- Knowingly represents the work of others as
his/her own, or represents previously completed academic work as
current.
- Fabricates data in support of an academic
assignment
- Inappropriately or unethically uses
technological means to gain academic advantage
Violators will be penalized in accordance with college
policy.READ the MCCC booklet on Academic Integrity.
Guidelines for
Courtesy and Respect:
I would like to welcome all students into an environment
that creates a sense of community, pride, courtesy and respect. In order to do
this, please make every attempt to come to all classes, to come on time, and to
stay until the end of the meeting. There may be a time when you are unavoidably
late for class. In that case, please come into the room quietly and choose a
seat closest to the entrance. Please turn off all cell phones and beepers prior
to coming into class.
Once
a class session has begun, please do not leave the room and then re-enter unless
it is an emergency. If you miss a class meeting for any reason, you are
responsible for all material covered, for announcements made in your absence,
and for acquiring any materials that may have been distributed in
class.
It is important that we are all able to stay focused on
the class lecture/discussion. For this reason, only one person at a time in the
class should be speaking. Side conversations are distracting for surrounding
students and for me. As you can see, simple norms of courtesy should be
sufficient to have our class run in the best interests of all of us. Thank you
in advance for your cooperation.
Study
Questions:
You should complete the
Study Questions at the end of each unit after that unit is completed in
lecture. These will be reviewed in the laboratory period as indicated in
the schedule. Bring them to the laboratory in which they will be reviewed
and receive 2 points for each set you have completed.
Additional
Materials:
The videos shown in lecture support the lecture
concepts. If you miss one you can make up this material by requesting the
videos at the Film Library. You should be reading in On Giants'
Shoulders: Great Scientists and Their Discoveries by Melvyn
Bragg all semester long as indicated in the Topical Outline. Some
questions on the examinations will be taken from this book, including items not
mentioned in lecture. There are also available many study aids in the Library
Computers, the computer laboratory (2nd floor MS), and the
bookstore.
Help is also available in the Science Learning Center (MS 211).
Free tutors are also available in the Tutoring
Center (second floor Library).
Grading
Procedure:
Grading will be based on
the point system as indicated below:
Activity |
% of
Total |
Basis for
Points |
Max.
Pts. |
First Hour
Test |
22% |
Percent |
100 |
Second Hour
Test |
22% |
Percent |
100 |
Laboratory
Reports |
14% |
5 points each
(13) |
65 |
Laboratory
Quizzes |
13% |
5 points each
(12) |
60 |
Study
Questions |
7% |
3 points each
(10) |
30 |
Final
Examination |
22% |
Percent |
100 |
TOTAL |
|
|
495 |
Bonus Points
(maximum) will be available as follows:
Term Paper (C Grade,
B Grade, A Grade) |
4, 7,
10 |
Homework Bonus -
Correct and on Time |
9 |
Lab Report Forms -
Bonus sections |
44 |
TOTAL Bonus Points
Available |
63 |
Other Bonus Points may become available at the
discretion of the instructor.
Grades will be
assigned based on the following scheme:*
A |
Above 425
points |
(above
93%) |
C+ |
340 - 359
points |
(75% -
78%) |
A- |
405 - 424
points |
(89% -
93%) |
C |
305 - 339
points |
(67% -
75%) |
B+ |
390 - 404
points |
(86% -
88%) |
D |
250 - 304
points |
(55% -
66%) |
B |
375 - 389
points |
(82% -
85%) |
F |
Below 250
points |
(below
55%) |
B- |
360 - 374
points |
(79% -
81%) |
|
|
|
*Acceptable laboratory performance along with a passed
grade on the final examination are required to pass the course. See the
Course Objectives for more details. See the last page of the Course Manual
for the Grade Record-Keeping Chart.
Weekly Class Activities
Schedule:
Week |
Lecture
Topics Course Manual |
Readings
Melvyn Bragg |
Laboratory
Activities |
Videos |
1 |
I. Measurements in
the Physical Sciences |
Archimedes |
Exp. 1: Parts A and
B |
"Powers of
Ten"
"The Metric Film" |
2 |
II.
Motion |
Galileo |
Exp. 1: Measurement
Standards & Measurement Systems |
"Force and Motion:
Newton's Three Laws" |
3 |
III. The
Gravitational Force |
Newton |
Exp. 2: Measuring
Mass-Volume Relationships |
"Galileo Moves the
Earth" |
4 |
IV.
Astronomy |
Newton |
Review: Study
Question 1
Exp. 3: Investigating Gravity Near Earth's
Surface |
Spaceship Earth:"
"The Universe" |
5 |
V. Electromagnetic
Interactions |
Faraday |
Review: Study
Question 2 Exp. 4: Magnetism, Motors, Public Service &
Pollution |
Electromagnetic
Waves |
6 |
V. Electromagnetic
Interactions |
Einstein |
Review: Study
Questions 3 & 4 Exp. 5: The Reflection of Light |
"Relativistic Time
Dilation" |
|
Hour Test I:
Units I- IV |
Chapters
Above |
Experiments
1 - 3 |
Objectives I
- IV |
7 |
VI. Electromagnetic
Spectrum, Radiation, and the Nature of Visible Light |
Einstein |
Exp. 6: The
Refraction of Light |
"The Mystery of
Light" |
8 |
VI. Electromagnetic Spectrum, Radiation, and the Nature of Visible Light |
|
Exp. 7: Refraction
Lenses &Optical Instruments |
|
Week |
Lecture
Topics Course Manual |
Readings
Melvyn Bragg |
Laboratory
Activities |
Videos |
9 |
VII. Atomic
Structure |
Poincare |
Exp. 8:Waves, Sound
and |
"Antiatter" |
10 |
VII. Atomic
Structure |
Poincare |
Review: Study
Question 5 Exp. 9: Measuring Visible Light Wavelengths |
"Natore of Matter" |
11 |
VIII. Bonding and
Molecules |
Crick &
Watson |
Review: Study
Question 6 Exp. 10: A Chemical Reaction Produced by
Light |
"The Periodic Table" |
12 |
VIII. Bonding and
Molecules |
Crick &
Watson |
Review: Study
Question 7 Exp. 11: Measuring an Atom's Mass |
"Atoms and Molecules" |
|
Hour Test
II:
Units V - VII |
Chapters
Above |
Experiments
4 - 11 |
Objectives V
- VII |
13 |
IX. Heat,
Temperature & the States of Matter |
Where Are We
Now? |
Exp. 12:
Classification of Materials by Conduction |
"States of
Matter" |
14 |
X. Nuclear Structure
Reactions & Energy |
Curie |
Review: Study
Question 8 Exp. 13: Organic Model Building |
"The Origin of the Elements" |
15 |
Laboratory Final Exam in the Testing
Center
|
15 |
FINAL
EXAMINATION - COMPREHENSIVE (LECTURE
ROOM)
|
Independent
Study Report (Optional) (SEE INSTRUCTOR)
If you find you are having
difficulty with the course and wish to do some extra work, you can submit a
short report based on independent reading in a related topic considered
in the course.
Guidelines
- The report
should be exactly two double spaced typewritten pages,
not including references.
- Reports will
not be graded if:
- They are longer or shorter than two typed
pages (not counting references.)
- They are done in a sloppy fashion that
could have been corrected by rereading, editing, or correcting grammar
mistakes. (Use the writing center.)
- The logic or continuity indicates little
or sloppy thinking went into originating the report.
- It is unrelated to the course.
- It restates only what we did in the course.
- An
exact due date will be announced; it will occur approximately during the tenth
week of class. Late papers will not be accepted.
- Topics will be
suggested, both in writing and verbally, but it is best if you select a topic
of personal interest to you. Be sure to get approval for your
topic from the instructor in the course before the approval deadline. Please
do not do a book report or a biography, they will not be
accepted.
- The textbook
may be used as a reference, but other sources must be consulted.
The bibliography at the end of each chapter might be helpful to you.
Your paper must include a bibliography of all sources that you used.
Consult the MCCC Student Guide to Writing Papers. Encyclopedias are not
acceptable references. You must use at least 2 non-internet
references.
- Any instances
of plagiarism will be handled according to the policy stated in the Student
Guide.
- Please seek
assistance from your instructor and plan your topic early.
- The report should have a cover page
which includes the title, your name, your section number, the course number
(PHY 111), and the date. Staple the report in the upper left
corner. Do not use a folder. The bibliography and
footnote references should be on a separate page.
BASIC REQUIREMENTS:
Participation in laboratory courses is permitted provided the student has completed the required prerequisites, is a minimum of 16 years of age, or by permission of the instructor and the Dean of the division.
It is the college policy that a student taking the class as an Audit must declare this at the time of registration, and may not attend the laboratory, may not take exams , and may not have quizzes graded.
If you need an accommodation, you must bring the form at least 2 weeks before it will be used.
GENERAL PERFORMANCE
OBJECTIVES:
- You must
satisfactorily complete the assigned laboratory experiments. Missing 3
or more will constitute an F for the course.
- You must attend all lectures. If a class meeting is missed for any reason, the student is responsible for content, announcements and acquiring missed materials. Three or more missed lectures may result in a lower grade.
- You must
complete the Hour Tests, the weekly laboratory quizzes, and the laboratory
final examination.
- You must
achieve a passing grade on a comprehensive final examination.
- You must
demonstrate proficiency in the subject matter by mastering a large part of the
material covered by lectures, homework, films, lab work and the texts as
detailed in the specific course objectives that follow.
COURSE COMPETENCIES/GOALS:
Course Competencies/Goals:
The student will be able to:
1. Develop the ability to think critically and reason quantitatively
2. Demonstrate a working knowledge of fundamental physical science principles
and concepts
3. Connect physical science concepts to the natural world and to formulate
perspectives on social issues influenced by science
4. Develop skills in observation, analysis of data, synthesis of information,
organization of data, and the application of the scientific method
5. Evaluate scientific evidence and communicate opinions and conclusions in
writing
General Education Knowledge Goals:
Goal 1. Communication. Students will communicate effectively in both speech and writing.
Goal 2. Mathematics. Students will use appropriate mathematical and statistical concepts and operations to interpret data and
to solve problems.
Goal 3. Science. Students will use the scientific method of inquiry, through the acquisition of scientific knowledge.
Goal 4. Technology. Students will use computer systems or other appropriate forms of technology to achieve educational
and personal goals.
Goal 9. Ethical Reasoning and Action. Students will understand ethical issues and situations.
MCCC Core Skills:
Goal A. Written and Oral Communication in English. Students will communicate effectively in speech and writing,
and demonstrate proficiency in reading.
Goal B. Critical Thinking and Problem-solving. Students will use critical thinking and problem solving
skills in information.
Goal C. Ethical Decision-Making. Students will recognize, analyze and assess ethical issues and situations.
Goal D. Information Literacy. Students will recognize when information is needed and have the knowledge and
skills to locate, evaluate, and effectively use information for college level work.
Goal E. Computer Literacy. Students will use computers to access, analyze or present information, solve
problems, and communicate with others.
Goal F. Collaboration and Cooperation. Students will develop the interpersonal skills required for effective
performance in group situations.
Goal G. Intra-Cultural and Inter-Cultural Responsibility. Students will demonstrate an awareness of the
responsibilities of intelligent citizenship in a diverse and pluralistic society, and will demonstrate cultural,
global, and environmental awareness.
SPECIFIC COURSE
OBJECTIVES:
I. Measurements in the
Physical Sciences:
The concepts and the
quantities of time, distance, mass, charge, temperature, area, volume, and
density will be treated both in the metric system and in the English
system. Recall the films "Powers of Ten" and "The Metric System" and the
"Measurement Standards and Measurement Systems" Experiment.
You should be able
to:
- Explain which quantities
are fundamental and which are derived.
- Learn the fundamental
units of mass, distance, time, temperature, and charge in the metric
system.
- Learn, use, and convert
between the metric prefixes of milli, centi, and kilo.
- Give at least three
characteristics of a good measurement standard.
- Explain the difference
among measurement standards, measurement units, and measurement
instruments.
- State the current
measurement standards for distance, time and mass and discuss how measurement
standards for time and distance evolved.
- Define and calculate the
quantities: area, volume, and density, in terms of the fundamental
quantities (distance and mass), being sure to include units.
- Distinguish between
solid (cubic centimeter) and liquid (liter)
volume and how they are obtained, and state the metric
relationship between them.
- Estimate (in metric
units) the approximate mass and approximate size of common household
objects.
- Perform some simple
comparisons between:
- Grams or kilograms and pounds or
ounces
- Inches, feet or yards and meters or
centimeters.
- Determine the density of
an object, given its mass and volume, and explain how and why it would float
or sink if dropped into water, or another liquid whose density is given.
("Measuring Mass-Volume Relationship" Experiment)
- Explain why density is
independent of sample size.
- Given the density of two
immiscible (do not mix) liquids, explain which would be on top (or bottom) and
why.
- List and explain how the
properties of a substance (atomic masses and spacings) effect its
density.
- Explain how a simple
balance works.
- Convert numbers between
decimal and scientific notation and vice versa.
- Do simple arithmetic in
scientific notation.
- Use the unit-factor
method to do conversions between quantities.
- Compare the Metric and
English systems with respect to the accuracy and ease of use.
- Explain the difference
between mass and weight.
- Describe the
contribution of the ancient Greeks to science and measurement.
II. Motion:
Speed, velocity, and
acceleration will be defined and a variety of kinds of motions will be
discussed, including:
Motion with constant
velocity
Motion with constant
acceleration
Simple harmonic
motion
Projectile
motion
Circular and elliptical
motion
Random thermal
motion
Newton's laws of motion
will be discussed and evaluated, along with a discussion of work and
energy.
You should be able
to:
- Quantitatively discuss the motions above
(a-f) and give an example of each. Sketch the graphs of the velocity and
position vs time and interpret them.
- Given an example of motion, determine which
type it represents, and vice versa.
- Describe the vertical and horizontal
components of projectile motion.
- Describe the centrifugal and centripetal
forces in circular motion.
- Determine the period and frequency of a
pendulum from appropriate data, and relate this to the pendulum's mass,
length, and height of swing.
- Define speed and acceleration in terms of
the fundamental quantities (distance and time).
- Distinguish between the concepts of
speed and velocity.
- Perform simple calculations to find speed,
time, or distance, if two of the three quantities are provided.
- Perform simple calculations to find
acceleration, time, or change in speed (D v) for constant acceleration.
- Use the formula: d = 1/2 a t2 to
find the distance resulting from uniformly accelerated
motion (falling objects).
- Illustrate and explain the various types of
acceleration, using examples.
- Describe the motion of falling objects,
explaining the changes in the relationship among time, distance, speed and
acceleration. ("Investigating Gravity Near the Earth's Surface"
Experiment).
- State Newton's three laws of motion and
provide an explanation of each which indicates that you clearly understand its
intent. (Include examples in your discussion).
- Use the equation: F = ma to compare
the acceleration of different masses subject to the same force.
- Define the derived quantity of force and
give its units in both the English and Metric Systems.
- Define the derived quantity of work, and
relate it to the concept of energy.
III. Gravitational Interactions:
Laboratory and lecture
experience will illustrate the behavior of free falling bodies and universal
gravitation. Newton's role in helping man to understand the force involved
will be investigated, his conclusions discussed, and its consequences
investigated. The consequences of universal gravitation will lead into a
discussion of astronomy and the interaction of celestial
bodies.
You should be able
to:
- Summarize the pre-Newtonian concept of
gravity (eg: Galileo, Aristotle).
- Identify the work done by Galileo, including
the
description of a accelerated motion, projectile
motion, the moons
of Jupiter, etc., and his getting
the heliocentric theory more widely
accepted.
- Describe Aristotle's five elements.
- Describe the contributions to science made
by Arab, Egyptian and Assyrian cultures.
- Describe the impact and nature of Newton and
his physics on society, and free will; explain the romantic reaction to all of
this.
- Explain the relationship of science to the
Industrial Revolution, citing examples.
- Write from memory Newton's Law of Universal
Gravitation and explain the meaning of each term, and its effect on the
gravitational force.
- Combine Newton's Second Law of Motion with
the Law of Universal Gravitation, and show that the acceleration of gravity
must be the same for all masses.
- Use Newton's Law to calculate the force
between two objects, given their masses and separation in metric units.
- Describe the magnitude of the gravitational
force between two "isolated" objects such as:
- Two people
- The Earth and moon
- The Earth (or moon) and a person (and the effect as they move further
away).
- Describe the differences
and relationship between mass, inertia, weight and force. Explain the
connection between ocean tides and universal gravitation.
- Explain the connection
between our atmosphere and universal gravitation.
- Compare gravitational
effects on the earth, the moon, and other planets.
- Qualitatively describe
Einstein's improvements upon the Newtonian view of gravity.
IV.
Astronomy
We will discuss the breath
and scope of the large scale universe with its impact and relationship to life
on Earth.
You should be able
to:
- Discuss and describe the earliest
contributions to astronomy (eg. Stonehenge, Egyptian, Babylonian, Assyrian,
Ancient Greek, Hellenistic and Moslem) in terms of their successes and
failures.
- Discuss the relationship of astronomy to
time and to astrology, and give arguments against astrology, and ways of
identifying other pseudosciences.
- Know the relative position and names of the
planets in our solar system, and briefly describe some of the features of each
one (eg. the clouds of Venus, canals of Mars, red spot of Jupiter, rings of
Saturn, tininess of Mercury, etc.).
- Show how astronomy fits into a general
historical and intellectual framework, relating to such historical figures as
Pythagorus, Plato, Aristotle, the Romans, Archimedes, Ptolemy, Galileo,
Copernicus, Brahe, and others.
- Know the relative motions of the moon, the
Earth, the sun, and the other bodies in our solar system, and what law governs
these motions.
- Describe the basic difference between
"inner" and "outer" planets in terms of size, structure, and location, and
name those in each category.
- List the four Galilean moons, the largest
moon in the solar system, and the largest moon around Jupiter and
Saturn.
- Describe how Pluto differs from the normal
pattern of the planets.
- Define the terms: eclipse, lunar
eclipse, solar eclipse, lunar phases, vernal equinox, autumnal equinox, summer
solstice, winter solstice, Tropic of Cancer, Tropic of Capricorn,
Equator.
- Know how the motions and positions of the
members of the solar system relative to the length of a "day" or "year" on a
planet (including the Earth), to the Earth's seasons to lunar phases, to lunar
eclipses, to solar eclipses, and to the apparent motion of the objects in the
Earth's sky.
- Cite examples and describe other celestial
bodies and areas (beside the sun, moon and planets) within our solar system
(eg. comets, asteroids, meteors Kuiper Belt, Oort Cloud) and explain where
they are found and/or what they contain.
- Cite examples and briefly describe
astronomical bodies and groupings in the universe (eg. solar systems, stars,
the milky way, galaxies, black holes, nebula, novae, pulsars, quasars).
- Describe and give relationships among:
blue giants, red giants, white dwarfs, neutron stars.
- Define the distance unit "light year" used
to describe astronomical distances.
- Describe the general distribution and motion
of the matter within the universe, and its cause.
- Describe our galaxy and the location of our
Solar System
in it.
- Know a few approximate distances: 93 million miles from here to the
Sun, 4.3 light years from here to the nearest star Alpha Centauri, 250,000
miles from here to the moon, and 100,000 light years across the Milky Way.
V. Electromagnetic Interactions:
From an essentially non-mathematical treatment which
depends heavily on laboratory experiences ("Magnetism, Motors, Public Service
and Pollution," Experiment) we will investigate the interaction of static
charges, moving charges, and magnetic fields. This will lead us to a basic
understanding of the functioning of electric motors, generators, and
transformers.
You should be able
to:
- Summarize the historical development of
electromagnetic theory, including names and approximate dates (eg. Franklin,
Coulomb, Volta, Oersted, and Maxwell).
- State the relationship of electromagnetism
and the Industrial Revolution.
- State that electrical charge is a
fundamental quantity and give its basic unit.
- Explain that all neutral matter is composed
of equal amounts of the two types of charge: positive and negative; and
that if some negative charge is removed the matter becomes positively
charged.
- Write from memory Coulomb's Law, which
describes the interaction of non-moving (static) charges, and explain the
meaning of each letter in the law.
- Explain the effect of changing the size of
the charges or distances involved on the force between them.
- Describe the use and operation of the device
for studying the electrostatic force (electroscope).
- Contrast the magnitude of electrostatic
forces (Coulomb's Law) with gravitational forces (Newton's Law), particularly
in the instances of:
- Planetary interactions (moon/Earth)
- Atomic realms (electron/proton)
- Describe some evidence of an
electromagnetism in your personal experience.
- Define magnetic force and magnetic
field.
- Describe the nature and interaction of
magnets and their magnetic fields, and what can effect a magnet's strength
and how.
- Describe the Earth's magnetic field and how
we detect it and other magnetic fields.
- Describe (with diagrams, if necessary)
that:
- Charges moving in linear paths generate
cylindrical magnetic fields.
- Charges moving in circular paths (coils,
for example) generate axial magnetic fields (within the coil).
- Magnetic fields exert forces upon charges
moving through them.
- Conducting loops (or coils) moving through
a magnetic field results in an induced current.
- Relate the principles above to the operation
of:
- Electric motors
- AC generators
- Transformer
VI. Electromagnetic Radiation and the Nature of Light:
From a historical
perspective and through a series of six laboratory investigations (Experiments
5-10), a rudimentary treatment of wave phenomena, and the behavior of light and
other electromagnetic radiation will be presented.
You should be able to:
- Trace the historical developments in man's
concepts of the nature of visible light, and summarize existing evidence for
both the particle and the wave theories of light.
- Illustrate that you have a clear notion of
the meaning of the amplitude, frequency, wavelength, velocity, and period of a
wave form, including their symbols. ("Waves, Sound, and Light"
Experiment)
- Demonstrate (and calculate) the relationship
among wavelength, frequency, and velocity, and explain the independence of
amplitude to these quantities.
- List and compare in terms of relative
frequencies (or wavelengths) and relative energies (penetrating power) at
least the following forms of electromagnetic radiation:
- X-rays
- Ultraviolet Light
- Visible Light
- Infrared Light
- Radio Waves
- Cosmic Rays
- Gamma Rays
- Microwaves and Radar
- Give an example, use, or source of each of
the above
kinds of radiation.
- Relate the concept of the pitch of a sound
or the color of light to the frequency (or wavelength) of its wave
form.
- Relate the concept of loudness of sound or
brightness of light to the amplitude of its wave form.
- Explain the difference between longitudinal
waves, such as sound, and transverse waves, such as light.
- Define and contrast amplitude
modulation (AM) and frequency modulation (FM), and their
place in the electromagnetic spectrum.
- Explain the greenhouse effect and give its
potential effect on climate.
- Explain the discovery and use of the X-rays
as being able to "see" through flesh and describe other applications of X-rays
and who discovered them (Roentgen).
- Define converging and diverging in relation
to mirrors and lenses.
- Define focal point and focal length in
relation to lenses.
- Explain with words and with diagrams the
ways that light can interact with matter, ("The Reflection of Light" and "The
Refraction of Light" Experiments) including some of the details and
applications of:
- Reflection (plane, concave, and convex
surfaces)
- Refraction (plane, concave, and convex
solids)
- Diffraction (narrow silts)
- Relate the curvature, focal length, and
magnifying ability of a convex lens.
- Apply the refraction principle ("Refraction,
Lenses, and Optical Instruments" Experiment) in describing (in terms of lens
placement, lens choice, image size, image location, and image quality):
- The function of the human eye.
- Corrective lenses (eyeglasses) for near-
sightedness and farsightedness.
- Cameras and camera lenses.
- Film projectors and photographic
enlargers.
- Microscopes.
- Telescopes and binoculars.
- Illustrate and describe the possible events
that can occur when two waves meet or "interfere".
- Qualitatively describe the interference
patterns one might observe for a variety of light sources, including:
- Incandescent
- Hydrogen
- Neon
- Florescent
- Helium
- The Sun
- Show that you have a basic feeling for the
use of Bragg's Law to account for the above interference patterns.
Specifically, you will be responsible for the qualitative description in the
laboratory experiment, ("Measuring Visible Light Wavelengths"
Experiment).
- Explain the nature of the interaction of
light with matter as it is used in the black and white photographic
process. ("A Chemical Reaction Produced by Light" Experiment)
- Explain the basic steps in the black and
white photographic process for producing both a negative and a
positive.
- Explain to which parts of the
electromagnetic spectrum photographic emulsions are most and least sensitive,
and why.
- Explain the nature, production, and
applications (eg Holograms) of LASER light and what the letters "LASER"
represent.
- State the speed of light and relate it to
Einstein's theory of Relativity. Also explain how we perceive or "see"
things.
- Discuss Einstein's theory of relativity in terms of an object's mass,
speed, and time scale.
VII. Atomic Structure:
Using evidence related to our experiments with light,
and drawing on important historical developments, we will investigate the nature
of the atom.
You should be able to:
- Summarize some ancient
theories concerning the internal structure of matter (eg: Earth, Air,
Fire, Water theory).
- State the experimental
verification of the "Atomic Theory" by John Dalton in 1804.
- Describe the Rutherford
scattering experiment and relate its contribution to our knowledge of the
structure of the atoms.
- Qualitatively relate how
emission spectra ("Wave- lengths of Light" Experiment) verify that different
electronic energy levels exist in atoms.
- Describe the Bohr
concept of the structure of an atom.
- Summarize the gross
features of the structure of atoms, including:
- The nature of the atom
and the nucleus (the kinds of particles, their masses and their
charges).
- The distribution of
electrons in allowed orbitals about the nucleus.
- What happens when
electrons move to higher or lower energy levels, and what causes it.
- The connection between
the physical and chemical behavior of an atom and the number of electrons in
its outermost orbit (valence electrons).
- The basis for
construction of the Periodic Table.
- Show by definition,
explanation, or examples that you have a fundamental concept of the following
terms:
- Electron
- Proton
- Neutron
- Nucleus
- Atom
- Element
- Isotope
- Ionization
- Atomic number
- Mass number
- Atomic weight
- Valence electrons
- Symbol of an element
- Nuclear notation
- Orbital
- Valence shell
- Explain the fundamental
unit of atomic weight: atomic mass units (amu), the current standard for
the amu, and how they are used to describe the relative masses of atoms
("Measuring an Atom's Mass" Experiment).
- Explain why the atomic
weights, as written in the Periodic Table, are not integers like the mass
numbers.
- Learn the name and
symbol for the following important elements:
H Hydrogen Mg
Magnesium Cl
Chlorine
C Carbon Al
Aluminum K
Potassium
N Nitrogen Si
Silicon Ca
Calcium
O Oxygen P
Phosphorous Fe Iron
Na Sodium
S Sulfur
He Helium
- Describe the basic
format of the Periodic Table, its origins,and its relationship to the number
of valence electrons; and indicate the following:
- Families or groups
- Periods
- Representative
elements
- Transition
elements
- Noble gases
- Metals
- Semimetals
- Nonmetals
- Define ions, and give
illustrations, distinguishing between anions and cations.
- Name the Russian
scientist given principal credit for devising the Periodic Table.
- Based on its position in
the Periodic Table, determine the number of valence electrtons and the most
likely ion an element will form.
- Given the mass number
and atomic number of an element (or ion) determine the number of electrons,
protons, and neutrons it contains and write it in nuclear notation (and vice
versa).
- Briefly describe the
modern "Quantum Mechanical" contributions to our picture of the atom, and how
they differ from the Bohr picture.
VIII. Bonding and Molecules:
We will briefly
investigate in laboratory and lecture the nature of the bonding between atoms in
the forming of molecules and compounds, and their basic
structure.
You should be able
to:
- Explain
what is meant by the words molecule, compound, formula, pure substance, and
mixture.
- Describe
the basic features and characteristics which distinguish among:
- Metallic
bonding
- Ionic bonding
- Covalent
bonding
- Describe
how each of the above bonds is formed between atoms.
- Explain and
give examples of pure substances and mixtures.
- From an
element's position in the Periodic Table, determine which of the above type of
bonding it will form with itself or another element, describing how the bond
would look, what the overall structure would look like for the molecule or
compound, and what formula it would have.
- From a
substance's electrical conductivity in the pure state and in water solution,
determine the nature of its bonding ("Classification of Materials by
Conduction" Experiment).
- Provide a
qualitative description of the kind of bonding and structures involved in each
of a series of compounds, such as:
- Water or oxygen
- Sodium chloride or
calcium oxide
- Graphite or
diamond
- Organic compounds such
as benzene, methane or sugar
- Magnesium, aluminum,
iron, etc.
- Describe an
electron transfer (ionic) bond and how it leads to the overall crystal lattice
structure of a substance that involves such a bond.
- Discuss the
covalent bond in terms of the number of electrons shared and the number of
bonds formed between atoms.
- Give a
positive and negative ion, write the formula for the compound it would form
and state the bonding involved.
- Discuss the
concept of the polarization of a bond and its relationship to polar
molecules.
- Discuss the
results of polarization on the properties of molecules (particularly for
water).
- Distinguish
among the metals, nonmetals, and semimetals and the general properties which
classify them thus.
- Explain
what is meant by the term organic chemistry and organic molecules.
- Explain the
characteristics of the carbon atom which makes possible the existence of
millions of carbon compounds.
- Name and/or
draw the structure of simple organic compounds such as methane, ethane,
ethylene, acetylene, benzene, and ethanol ("Organic Model Building"
Experiment).
IX. Heat, Temperature, and the States of
Matter:
We will discuss heat energy, temperature, and pressure
and their relationship to the states of matter.
At the end of the
treatment you should be able to:
- List several different kinds of
energy and describe each.
- Distinguish between kinetic and
potential energy and describe examples of converting from one to the
other.
- Demonstrate a knowledge of the
three temperature scales by stating their units and the relationship between
them.
- State in degrees Celsius
(approximately): What is common room temperature; what is body
temperature.
- State what is meant by
"absolute zero."
- Define the term energy and
relate it to work.
- State the definition of calorie
and kilocalorie.
- Define and contrast the terms
heat and specific heat.
- Distinguish between heat and
temperature, and relate them to random thermal motion, and to each
other.
- Explain how to determine in
which direction heat will flow from one body to another.
- Explain the difference between
the three methods of transmission of heat: conduction, convection, and
radiation; and give examples of each.
- Explain what is meant by
pressure, what causes it in gases (on a molecular level), and what units it
has.
- Explain the effects of pressure
and temperature on and between the states of matter, particularly the gaseous
state. Include effects at the molecular level.
- Explain the kinds of molecular
motion involved in each of the states of matter, and how close the molecules
are.
- Explain what "change of state"
means and how heat energy is involved.
- Show by definition,
explanation, or examples that you have a fundamental concept of the following
terms:
- Evaporating
- Condensing
- Boiling
- Melting
- Freezing
- Subliming
- Briefly discuss the historical
development of thermodynamics and its impact of the Industrial
Revolution.
X. Nuclear Structure, Reactions, and Energy:
We will briefly probe the
nature of the nucleus of an atom and the technology of nuclear reactions.
Your mastery of this unit will be based upon your ability to:
- Provide a
qualitative description of the nature of the forces between nuclear particles
and discuss the role of electromagnetic forces which must be overcome.
- Discuss the
main simple features of the nuclear force.
- Show by
definition, explanation, or examples that you have a fundamental concept of
the following terms:
- Nucleons
- Radioactivity
- Alpha particles
- Beta
particles
- Gamma
rays
- Radioactive
half-life
- Transmutation
- Geiger
Counter
- Ionizing
radiation
- Carbon dating
- Spontaneous
fission
- Induced fission
- Critical mass
- Chain reaction
- Radioactive
fallout
- Fusion
- Discuss the
relative number of neutrons to protons in the various nuclei and explain the
consequences of and reasons for this ration.
- Qualitatively summarize the causes
and consequences of:
- Alpha decay
- Beta decay
- Gamma decay
- Nuclear fission (what atoms are
involved?)
- Nuclear fusion (what atoms are
involved?)
- Given
an element's atomic number and mass number, write it in nuclear
symbolism, or vice versa.
- Balance
nuclear reactions using nuclear symbolism.
- Discuss the
nature and use of radioactive Carbon-14 dating, and the origin of
Carbon-14.
- Discuss the
historical development and use of the atomic bomb. Explain the
nature, source of energy, and results of the atomic bomb and of the hydrogen
bomb.
- Describe
the results of fusion in stars (include our own sun in the discussion).
- Discuss all
sources of energy in terms of safety, pollution and availability (eg:
fossile fuels, geothermal, solar, waterfalls, fission, and fusion).
- List the practical
uses of, the adverse effects of, and the future possibilities
for:
- Fission
reactions
- Fusion
reactions
- Radioactive elements
The specific objectives
outlined above should guide you in the course. They explain the level of
competency that is expected of you, and the scope of our exploration in the
physical sciences. It is an optimistic list of our goals which might
occasionally be amended to meet an immediate circumstance. Any changes
will be clearly communicated to you. Do not hesitate to question any
statements or to request more explicit explanation.