Study guide for Physical Science Exam 3
The following is a general guideline to my third exam. The exam will
cover
chapters 7, 8, 9 and the first portion of 10. This content is covered
with lectures 16 - 19. I will use material from both the textbook and
my lectures. It will consist of the following types of questions.
-
True/False - You will need to distinguish between true and
false
statements based on the principles discussed in the book and in
class.
This can include such things as identifying appropriate units,
identifying
terms and their definitions, proper use of symbols, etc.
-
Multiple Choice - You will need to draw conclusions from
presented
material and choose the best answer. This can include such things
as identifying appropriate units, performing simple calculations,
identifying
terms that go with a definition, proper use of symbols, etc. Multiple
choice
also makes it easy to ask questions about the concepts presented in the
chapters and how they apply to specific situations. These questions may
require you to interpret how one quantity may affect another quantity.
An example of the last statement is "If the net unbalanced force on an
object is doubled, what will happen to the acceleration of that object?
Will it (A) be half as large, (B) be the same, (C) be twice as large,
or
(D) be four times as large." You would need to apply the formula "F=ma"
to decide on the appropriate response.
-
Equations - Some questions on the exam will require you to
use the formulas
available in the book. I will provide a copy of the formulas on the
exam so you do not need to memorize them. However, you should know
what the symbols of the formula mean and how to use the formulas.
Some questions can be answered by knowing the relationship between some
of the variables within the exam. Other questions will require you
to perform a calculation. You should bring a calculator with you
to the exam.
-
Essay - I will place two short essay questions on the exam
worth
10 pts each. These essays are to test whether you understand the
broader principles and issues that come into play when studying
physical science. I will provide a list of essay questions I may
possibly ask so you can think through the issues ahead of time.
(Disclaimer: Since this is only a guide line for the exam, I reserve
the
right to stray from this guideline as I feel is appropriate.)
The exam will use a scantron for the multiple choice and true false
questions. You need to bring a number 2 lead pencil as well as
calculator to the exam.
Use the organization of the text book to help you prepare for the
exam.
The following features of the text will help you
-
Important terms at the end of each chapter. You should be
able to
define the words presented and know how they apply to the material we
have
studied.
-
Exercises and Questions at the end of the chapter will give
you
practice using the concepts and facts of each chapter. There are also
problems at the end of chapters 2 and 3. Although I will not put a
strong emphasis on calculation based problems, you should be able to do
calculations similar to the ones I performed in class. The problems
will give you some practice in solving these types of problems.
The following list consists of those concepts that I stressed in class.
This is not a comprehensive list; however, it will convey the major
thrust
of the exam.
Possible Essay Questions
- Although obeying the laws of physics, the motion of small
particles is unpredictable and random.
Yet, by combining the motion of trillions of particles, it is possible
to have well defined behavior
that is predictable and non-random on the large scale. Give an example
from class of this
connection between the small scale and the large scale and then discuss
the implications of this
connection to the concept of determinism.
- The Shroud of Turin is claimed to be the burial cloth of Christ.
Several years ago a small portion of the cloth was tested for Carbon-14
to determine its age. The test results indicated that the Shroud was
only 1000 yrs old rather than the expected 2000 yrs. What assumptions
go into determining the age of the shroud and how confident are you
that these assumptions are true?
- One day at work you have a co-worker come up and accuse you of
destroying the environment. The reason for their accusation is
that you are a Christian and they heard that the Bible says that God
lets man do anything he wants with the earth. How would you
respond to this individual in a way that would allow you to be a
witness for Christ?
Chapter 6
- Reductionism, holism, and emergence
- Refraction
- Dispersion
- Rainbows
- Diffraction
- Constructive and destructive interference
- Harmonic series
- Resonance
- Diffraction grating
- Interferometry
- Electromagnetic spectrum
- Doppler effect
- Limitation of senses
Chapter 7
- Structure of the Atom
- Elements and Isotopes
- Atomic mass, atomic number and symbol representing nuclides
- Alpha decay, beta decay and gamma rays
- Half-life of radioactive materials
- Nuclear fission and fusion
- Concerns with nuclear power
- Promises of nuclear fusion
- Grand unified theory and the standard model of matter and
forces in the universe
Chapter 8
- Photoelectric effect
- Energy wavelength relationship for photons of light
- Heisenberg's uncertainty principle
- Blackbody radiation
- Matter waves
- Wave/particle paradox for electrons
- Emission and absorption spectra of atoms
- Bohr model of Hydrogen
- Greenhouse gases and atmospheric windows
- Lasers
- Quantum numbers and the periodic table
- Why electron behavior is predictable in atoms although you can
never measure them exactly?
Chapter 9
- Period and groups of the periodic table
- Chemical symbols and names
- Mixtures and compounds
- Order that energy shells are filled as electrons are added to
an atom
- Categories of elements
- Trends in the periodic table
- Metals and their properties
- Valence and valence electrons
- Using the octet rule
- Lewis symbols
- Ionic and covalent bonds
- Predict ratio of elements in a compound
- Polyatomic ions
I will not include
- Formula mass and percentage of an element by mass
- Naming compounds
- Reactants and products of chemical reactions
- Balancing chemical equations
A page of information will be available on the exam. It will
contain formulas,
conversion relationships, and important constants. You should know when
and how to apply this information.