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Simple Harmonic Motion

Calculus-Based General Physics

Have you ever felt you were the slave of a clock? Clocks are mechanisims that include a pendulum or balance wheel whose repeated patterns of movement define equal time intervals, one after another. Such repeated movements are called periodic motion. Periodic motion may occur when a particle or body is confined to a limited region of space by the forces acting on it and does not have sufficient energy to escape.

In this module you will study the special kind of periodic motion that results when the net force acting on a particle, often called the restoring force, is directly …

Second Law And Entropy

Calculus-Based General Physics

Suppose you get into your car and drive to _________.* During this trip, (1) the burning of the gasoline in the engine cylinders converts chemical energy into thermal energy of the gases -- that is, they become very hot; (2) the expansion of these hot gases turns the crankshaft, performing work; and (3) this work, transmitted to the wheels, gives the car kinetic energy -- which must be continually replenished, because of depletion by friction and air resistance. At the end of this trip, ____ gallons of gasoline have been converted into water vapor, carbon dioxide, and sundry less desirable …

Faraday's Law

Calculus-Based General Physics

Consider the electric light you may be using to read this module by and the influence on your life style of the vast amounts of electrical energy produced in the United States. This module treats the fundamental principle that allows for the transformation of mechanical energy into electrical energy. The physical law that governs the production of electric current is named after its discoverer, Michael Faraday.

Ohm's Law

Calculus-Based General Physics

Recently you have heard many ways of reducing energy consumption in the home. One of the suggested ways is to use 60-W liqht bulbs rather than 100-W bulbs; another is to cut back on the use of electrical appliances. You readily identify these suggestions with decreasing the amount of "electricity" beinq transported through the wires coming into your home.

You were warned quite early in life not to stick a metal knife into the toaster to force out burning bread; you either unplug the toaster or use a utensil with a wooden handle. Why? Because you were warned of the …

Rotational Dynamics

Calculus-Based General Physics

A diver, in making several turns in the air, grabs his knees to achieve a high rate of rotation, and a skater does much the same thing when she goes into a spin with arms and legs extended but brings them in close to her body for the extremely rapid part of this motion. This module considers the physics describing these motions, and those of other rotational systems -- starting or stopping a record turntable (or a washing-machine tub), unwinding of winch cord as a bucket is dropped into a well, etc.

Traveling Waves

Calculus-Based General Physics

"For many people -- perhaps for most -- the word "wave" conjures up a picture of an ocean, with the rollers sweeping onto the beach from the open sea. If you have stood and watched this phenomenon, you may have felt that for all its grandeur it contains an element of anticlimax. You see the crests racing in, you get a sense of the massive assault by the water on the land -- and indeed the waves can do great damage, which means that they are carriers of energy -- but yet when it is all over, when the wave …

Conservation Of Energy

Calculus-Based General Physics

Imagine a bicycle rider coasting without pedaling along a road that is very smooth but has a lot of small hills. As he coasts up a hill, the force of gravity will, of course, slow him down; but it speeds him up again as he goes down the other side. We say that gravity is a conservative force because it gives back as much kinetic energy (KE) to the cyclist when he returns to a lower level, as it took away when he ascended to the top. We therefore assign a gravitational potential energy (PE) U_g to the cyclist, …

Temperature, Heat, And Thermodynamics: First Law

Calculus-Based General Physics

How can we keep track of energy as it is transferred from one system to another? How can we calculate the amount of internal energy -- a quantity that seems to be hidden within the very "guts" of matter? Further, what is the difference between temperature and heat, and between heat and work?

This module focuses on the first of two central thermodynamic principles: the conservation of energy, or, as it is sometimes called, the first law of thermodynamics. The second basic principle, which deals with the inevitable increase of a quantity called entropy, is the subject of another module …

Alternating-Current Circuits

Calculus-Based General Physics

The electric clock on the wall, radio and television, the incredibly rapid handling
of information by computers, and the transmission of signals by our own nerves
are among countless devices and effects that depend on circuits in which currents
or voltages vary with time. Alternatinq-current (ac) circuits, in which charges
oscillate back and forth in a wire in such a way that the average current is
zero,are among the simpler time-varying circuits. In this module you will study
the behavior of simple ac circuits containing resistors, inductors, and capacitors.

0 Introduction To Study Modules For Calculus-Based General Physics

Calculus-Based General Physics

These modules were prepared by fifteen college physics professors for use in self-paced, mastery-oriented, student-tutored. calculus-based general physics courses. This style of teaching offers student's a personalized system of instruction (PSI), in which they increase their knowledge of physics and experience a positive learning environment. We hope our efforts in preparing these modules will enable you to try and enjoy teaching physics using PSI.

This is the second printing of the CBP modules. We have tried to remove all of the errors from this material. No doubt, we missed a few, please write to us and tell us any that …

Gravitation

Calculus-Based General Physics

The members of the solar system -- the Sun, the Moon, and the planets -- have held a strong fascination for mankind since prehistoric times. The motions of these heavenly bodies were thought to have important specific influences on persons' lives -- a belief that is reflected even today in horoscopes and astrological publications. A revolution in man's thinking that occurred about four hundred years ago established the concept of a solar system with planets orbiting about the Sun and moons orbiting about some of the planets. Copernicus, Kepler, Galileo, and Newton were the four scientific leaders chiefly responsible for …

Impulse And Momentum

Calculus-Based General Physics

You have already learned that you stub your toe harder trying to kick larger masses. Now imagine another unpleasant activity: catching a bowling ball. This gets harder to do as the ball is dropped from higher places. The difficulty depends both on the ball's mass and its velocity just before you apply the stopping force. This force can be applied in different ways. Any winner of an egg-throwing contest will tell you the way to stop an object with the least force is to spread the stopping process out over a maximum time.

This module will develop the above "folk …

Newton's Laws

Calculus-Based General Physics

When a body is at rest, we know from experience that it will remain at rest unless something is done to change that state. A heavy box on the floor will stay in place unless it is pushed or pulled. We walk without fear beside a massive rock on level ground because we know it won't suddenly move and crush us.

Undoubtedly you have leaned against a chair only to have it move and send you scurrying for your balance. Did you then question the relationship of the interaction between you and the chair to the ensuing motion of the …

01 Content And Prerequisite Description: Module Sequence/Roadmap With Links

Calculus-Based General Physics

What is the proper order to address the topics in the STUDY MODULES FOR CALCULUS-BASED GENERAL PHYSICS ? Do you need to master "A" before moving on to "B"?

These are prerequisite charts and suggested sequences for study modules of the Calculus-Based Physics Personalized System of Instruction:

I. Mechanics, Sound, Heat

II. Electricity, Magnetism, Light

Each "road map" is linked to the texts of the modules in this repository.

Trigonometry

Calculus-Based General Physics

Many of the applications of physics will require you to have a thorough knowledge of the basic properties of right triangles, i.e., triangles that have one angle equal to 90°.

The trigonometric functions are defined with respect to a right triangle as follows:

sin θ = y/r

cos θ = x/r

tan θ = y/x

The values of the trigonometric sine, cosine, and tangent functions for a given θ can be determined from a table such as in the appendix to your text or the last page of this module. You can also get the values by use of most …

Work And Energy

Calculus-Based General Physics

Energy is much in the news lately. The term "energy" usually refers to the inherent ability of a material system, such as a person, a flashlight battery, or rocket fuel, to bring about changes in its environment or in itself. Some common sources of energy are the fuel used to heat hot water, the gasoline that propels a car, the dammed water that drives the turbine in a hydroelectric plant, and the spinning yo-yo that can climb up its own string. Inanimate energy sources are of central importance in raising the standard of living of mankind above the subsistence level. …

Sound

Calculus-Based General Physics

We, much more than our ancestors, are constantly being bombarded by sound. We hear, and are more or less aware of, music, air hammers, television sets, jet planes, conversation, engines, sirens, etc., throughout the day. A sophisticated audio industry tries to improve the quality of musical sound. At the other end of the quality scale, noise pollution is a serious concern, which probably affects our lives more than we realize.

In order to deal with sound, we should have some idea of what it is. What factors determine whether a sound is pleasing or grating? How is sound transmitted? How …

Diffraction

Calculus-Based General Physics

Have you ever wondered why you can hear around corners, but cannot see around them? You know that light and sound are waves, and should therefore share the same basic properties. Why then do they seem so different in the property of their "shadows"?

In this module you will learn that light does exhibit all the bending properties of sound and water waves. The effect, however, depends on the size of the obstacle compared to the wavelength. It is only the largeness of everyday obstacles compared to the very small wavelength of light that deemphasizes the bending, or diffraction, of …

Ec75-219 Nebraska Swine Report, William Ahlschwede, T. E. Socha, Alfonso Torres-Medina, A. J. Lewis, P. J. Cunningham, Dwane R. Zimmerman, E. R. Peo Jr., Larry K. Mcmullen, Bobby D. Moser, D. L. Ferguson, Phillip H. Grabouski, Murray Danielson, Charles W. Francis, L. F. Elliott, J. A. Deshazer, Roger W. Mandigo, W. J. Goldner, R. D. Fritschen, Gary Zoubek

University of Nebraska-Lincoln Extension: Historical Materials

This 1975 Nebraska Swine Report was prepared by the staff in Animal Science and cooperating departments for use in the Extension and Teaching programs at the University of Nebraska-Lincoln. Authors from the following areas contributed to this publication: Swine Nutrition, swine diseases, pathology, economics, engineering, swine breeding, meats, agronomy, and diagnostic laboratory. It covers the following areas: breeding, disease control, feeding, nutrition, economics, housing and meats.

G75-232 Cow-Calf Herd Health Program Basics, Dale Grotelueschen, Duane Rice

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide suggests ideas and discusses some basic essentials of health management in beef cow operations.

Establishing a good cow-calf herd health program is a necessary step if profit is to be realized. Managing disease risk is an important aspect of a good health program design. Vaccinations help reduce the probability of disease but cannot solely be depended upon for prevention. Well-designed herd health programs address multiple areas of management in order to reduce likelihood of disease outbreaks. The objective of any beef herd health program should be to profitably produce calves having optimum weaning weights from a high percentage …

Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln

Farm, Ranch and Home Quarterly

In this issue:

2 Water Resources Research

5 The Cost of Trucking Meat

6 Crop Residues Have Forage Potential

8 Supplementation: Livestock on Residues Need It

10 Home Economics' New Home

12 Meet Your Earthwatching Task Force

15 A Look at Nebraska's Export Picture

16 How To Protect Sheep From Flies

18 Can the Industry Really Afford Eggshell Waste?

20 25 Years of Foundation Seed

22 Why Farm Families Moonlight

23 Simulation and the Swine Producer

24 Areas of Excellence

Epidemiological Definition Of The Cohort Of Diseases Associated With Diabetes In Southwestern American Indians, Karl R. Reinhard Dvm, Naomi I. Greenwalt

United States Public Health Resources

A computerized health records system has facilitated an analysis of the correlated illness of a segment of population afflicted with a chronic disease. Taking the existence of clinical diabetes as a starting point, the total illness experience of 635 diabetics, as shown by clinic utilization data, has been compared with an age-sex-geographically matched control population.

The comparisons show that, overall, diabetics cause a caseload rate more than double that of nondiabetics. In 17 out of 22 broad health problem areas, the diagnosis caseload rates for diabetics varied from 1.3 to 3.7 times greater than the rate for matched, non-diabetic controls. …

Creative Clothing...Opening The Door : Extension Circular 4-10-75, Gail Skinner

Nebraska 4-H Clubs: Historical Materials and Publications

Discusses different aspects of sewing such as: color coordination, sewing machine vocabulary, tools used, correct posture, customization of clothing and hygiene for 4-H.

Module 5: Analysis Of Physics Problems And Test Questions, Francis P. Collea, Robert Fuller, Robert Karplus, Lester G. Paldy, John W. Renner

Physics Teaching and the Development of Reasoning: Workshop Materials

You may be wondering how to apply the concept of developmental stages in your physics teaching, To help you with this, we have prepared modules 5-11 dealing with differing aspects of instruction. Module 5 concentrates on the analysis and writing of physics problems and test questions. As you read the examples we have selected, keep in mind the characterisrtics of concrete and formal thought described in Module 2. A matter that we find difficult to resolve concerns how to give all students, regardless of the reasoning patterns they use initially, practice in problem solving. Furthermore, evaluation through tests should give …

Module 1: How Students Think, Francis P. Collea, Robert Fuller, Robert Karplus, Lester G. Paldy, John W. Renner

Physics Teaching and the Development of Reasoning: Workshop Materials

You have probably been curious at various times in your teaching career about the thinking strategies that students enrolled in physics appear to use to solve problems. It is difficult for most of us to understand that many students do not use reasoning patterns that seem to be obvious. Many students substitute numbers into a formula they remember, even though the formula may not be applicable to the problem at hand. This situation quite naturally leads us to wonder about the reasoning that students utilize when we would employ mental operations such as separating variables, excluding an irrelevant factor, or …

Module 4: Formal Thought, Francis P. Collea, Robert Fuller, Robert Karplus, Lester G. Paldy, John W. Renner

Physics Teaching and the Development of Reasoning: Workshop Materials

In Piaget’s theory, concrete thought is characterized by serial ordering, simple classification, conservation logic and other operations applied to objects that a person is able to observe or manipulate directly. Formal thought includes these operations but goes beyond them to utilize other processes in situations where one does not deal with tangible objects. Formal processes often involve proportional reasoning, separation of variables, elimination of contradictions, and class inclusion or exclusion operations.

Illinois Central College Student Interviews (Video)

Module 4: Interviews of College Students

In this 25-minute film, students attempt to solve The Algae Puzzle, The Frog Puzzle, and The Mealworm Puzzle, and explain and discuss their logic.

A highly illuminating look at students’ reasoning processes.

The "document" here is a PDF file showing 9 still-frames, the actual video is attached below (in 2 versions) as "Related Files":
An MPEG-4 movie version (for Quicktime or other player), at 263 Mb.
A Shockwave Flash version, at 227 Mb.

Module 10: Teaching Goals And Strategies, Francis P. Collea, Robert Fuller, Robert Karplus, Lester G. Paldy, John W. Renner

Physics Teaching and the Development of Reasoning: Workshop Materials

Most physics classes include students who use concrete reasoning patterns on some occasions and formal reasoning patterns on others. Most likely their approach to a new kind of problem will Include a mixture of techniques derived from their previous learning, their awareness of their own reasoning, and their ability to engage in self-regulation. Obstacles to their success may stem from misconceptions they formed as a result of poorly assimilated prior learning experiences. So what? What does that tell me about the goals and strategies I might choose for my teaching? In this module we shall pursue the implications of the …

Annual Report: 1975

Cherry County (Nebraska) Extension: Historical Documents

Foreward .................. 1

Extension Organization and Planning ......................... 2-5

SEMIS 10 ......................... 6-17

Budget and Expenditures ......................... 18

Inventories ......................... 19-25

Agricultural Experiment Station News January 1975

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
IANR FACILITIES REQUESTS - 1975-76
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - December 1974
BULLETINS PRINTED