ISSN:0002-9505    

DOI:10.1119/1.1987698

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1987699

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1987700

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1987701

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

摘要:

A remarkable motion occurs when a classical inverse-square-law orbit is perturbed by a weak uniform force field in the orbital plane. The bizarre nature of the motion, together with the fact that most physicists and physics teachers have never seen or been aware of it, make it an ideal topic for independent research at the undergraduate level. Several modes of attack on the problem are suggested. They proceed from experimentation on a computer simulation, through analytic approximations, to closed-form solutions. A quantum mechanical treatment is also suggested.

ISSN:0002-9505    

DOI:10.1119/1.1987702

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

摘要:

An analytic solution for determining the markings on a horizontal sundial is presented. A description of a demonstration self-contained horizontal sundial with bubble level, compass, and equation of time is also given.

ISSN:0002-9505    

DOI:10.1119/1.1987703

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

摘要:

In the present “laser age” more and more institutions of higher learning are offering laser courses. A physics professor, teaching such a course (or courses), soon realizes that the subject can be addressed and presented at three distinct levels of conceptual and mathematical sophistication. In this paper, the three levels are defined and characterized. In addition the advantages and disadvantages of each approach are discussed and recommendations for choosing a particular approach to match student level and interest are offered.

ISSN:0002-9505    

DOI:10.1119/1.1987704

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

摘要:

A required course for graduate teaching assistants on improving the quality of instruction in the undergraduate laboratories is described. As a principal feature of the course, the graduate students improved existing laboratory experiments or developed new ones. Both self-evaluation and evaluation by faculty members were applied to the final products.

ISSN:0002-9505    

DOI:10.1119/1.1987705

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

摘要:

A light flasher has been developed for use with the open-shutter photography technique in elementary-mechanics experiments. The unit operates on two AAA-type batteries with a flash rate that can be made independent of battery potential. One to three lamps can be driven by a single flasher making it possible to determine, for example, the angular displacement of a puck as well as its position on an air table. One model of the flasher is integrally mounted on an air puck and provides space to mount ring magnets for experiments involving magnetic interaction. Several applications of the flasher circuit are discussed.

ISSN:0002-9505    

DOI:10.1119/1.1987706

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP

摘要:

A project on a computer based dialogue for freshmen is described and evaluated. The dialogue utilizes a CAI language written infortranthat allows a designer to easily write and edit questions at his own desk without the use of a terminal.

ISSN:0002-9505    

DOI:10.1119/1.1987707

出版商:American Association of Physics Teachers    

年代:1974

数据来源: AIP