摘要:

Prepared at the request of the AAPT Committee on Resource Letters; supported by a grant from the National Science Foundation.This is one of a series of Resource Letters on different topics, intended to guide college physicists to some of the literature and other teaching aids that may help them improve course contents in specified fields of physics. No Resource Letter is meant to be exhaustive and complete; in time there may be more than one letter on some of the main subjects of interest. Comments and suggestions concerning the content and arrangement of letters as well as suggestions for future topics will be welcomed. Please send such communications to Professor Arnold Arons, Chairman Resource Letter Committee, Department of Physics, Amherst College, Amherst, Massachusetts.Notation:The letterEafter the item number means that the reference should be mainly useful forelementarycourses. In view of the complexity of the subject,elementarywill normally imply junior courses. The letterIindicatesintermediate(senior and first-year graduates) andAindicatesadvanced(second-year graduates and students beginning research in plasma physics).Additional copies:Available from American Institute of Physics, 335 East 45 Street, New York, New York 10017. When ordering, request Resource Letter PP-2 and enclose a stamped return envelope.

ISSN:0002-9505    

DOI:10.1119/1.1972403

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

An experiment in elementary particle physics is described which is suitable for either the introductory or the advanced undergraduate laboratory. By making quantitative measurements on bubble chamber photographs and using the laws of relativistic mechanics, the student can make a complete analysis of the events studied. This analysis includes the identification of several “unknown” particles and the estimation of their lifetimes. A second part of the experiment involves scanning and recognition of various events produced byK−,pinteractions. The necessary photographs are included to allow the experiment to be performed by the reader.

ISSN:0002-9505    

DOI:10.1119/1.1972407

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

Maxwell's equations for time-dependent fields are integrated directly by using the scalar-vector analog of Green's theorem and the Dirac delta function. The fields are expressed in terms of volume and surface integrals over the time varying sources. For the particular case of harmonic time variation, the results agree with previous solutions.

ISSN:0002-9505    

DOI:10.1119/1.1972413

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

A canonical transformation leading from a Hamiltonian systemΣto anotherΣ*is symmetrical in the sense that the transformation fromΣ*toΣis also canonical. By writing the transformation functions in such a way that the symmetry is exhibited explicitly, i.e., that neitherΣnorΣ*is singled out, one is naturally lead to consider an intermediate coordinate systemSwith 2nindependent coordinates,ncoordinates fromΣ, andnfromΣ*. Working fromSit is then a straightforward matter to derive all the properties of canonical transformations. It is shown that the arbitrariness of the Lagrangian to within the addition of the total time derivative of an arbitrary function of the coordinates and the time follows from Lagrange's equations of motion. It is therefore also possible to derive the generating functions of canonical transformations without an appeal to Hamilton's principle.

ISSN:0002-9505    

DOI:10.1119/1.1972417

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

A single Hugoniot curve determined from shock-wave experiments does not provide enough thermodynamic information to specify an equation of state. The assumptions which, along with shock-wave data, are sufficient to determine a complete equation of state are instructive to a serious student of thermodynamics, because they illustrate the significance of the state variables and the relations among them. This paper considers the specific problem of calculating the state variables of shock-induced states and discusses calculations based on the assumption of either constantCvor constantCpfrom a structural point of view. Methods of calculating the state variables are formulated to show how the assumptions make them possible. The assumption of constantCvspecifies implicitly the functional forms of the(E-p-v)and(p-v-T)equations of state. Similarly, the assumption of constantCpspecifies the functional forms of the(H-p-v)and(p-v-T)equations of state. The experimental Hugoniot curve is used as a boundary condition to determine arbitrary functions in these equations of state and to show how the assumptions and the experimental data lead to a complete thermodynamic description of shock-induced states.

ISSN:0002-9505    

DOI:10.1119/1.1972422

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

It is argued that there is much, in the mechanics commonly taught at University, that serves no purpose whatsoever, either practical or intellectual, and that such parts could be thrown out without any real loss to anyone. The three branches into which mechanics might be divided, introductory, intermediate, and advanced, are each considered, as well as experimental work; and things that could be omitted, or places in which the treatment could be simplified, are pointed out.

ISSN:0002-9505    

DOI:10.1119/1.1972427

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

The concept of magnetic lines of force usually has been substantiated by an appropriate demonstration of the arrangement of iron filings around a magnet. In the corresponding case of electric field, demonstrations have been difficult to make. This article describes a method which overcomes the difficulties and, with simple equipment and materials, illustrates three-dimensionally electric lines of force in fields of fairly low intensity.

ISSN:0002-9505    

DOI:10.1119/1.1972433

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

Elementary textbooks frequently make assumptions, which are difficult to justify, in their derivations of Bragg's law. The present proof attempts to avoid these and yet to remain elementary.

ISSN:0002-9505    

DOI:10.1119/1.1972439

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

The Schrödinger problem of the hydrogen atom is solved using toroidal coordinates in momentum space. The wavefunctions are expressible in terms of Jacobi polynomials and ordinary trigonometric functions.

ISSN:0002-9505    

DOI:10.1119/1.1972444

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP

摘要:

Feynman's space-time path formulation of nonrelativistic quantum mechanics is applied to the problem of classical diffusion.

ISSN:0002-9505    

DOI:10.1119/1.1972449

出版商:American Association of Physics Teachers    

年代:1966

数据来源: AIP