Accession Number : ADA189854

Title :   A Qualitative Approach to Electricity.

Descriptive Note : Technical rept. Jun 85-Sep 86,

Corporate Author : XEROX PALO ALTO RESEARCH CENTER CA INST FOR RESEARCH ON LEARNING

Personal Author(s) : Haertel, Hermann

PDF Url : ADA189854

Report Date : 15 Sep 1987

Pagination or Media Count : 126

Abstract : In the teaching of physics, the study of electricity and magnetism typically follows the introduction of the basic concepts of mechanics. However, there are some new concepts associated with electromagnetic fields that seem at first to the student to be unrelated to, or even incompatible with, Newton's third law as learned in mechanics. Furthermore, the transition from electrostatics to studies of moving charges and associated magnetic phenomena seems to many thoughtful students not to be consistent with concepts learned earlier in the course. This report describes approaches to electrostatics, to elementary circuits, and to the effects of moving charges in a way carefully designed to be fully consistent throughout, so that the thoughtful students is not left with quandaries about the relationship of each set of basic concepts to the other sets in the course. Keywords include: Physics, Qualitative concepts and reasoning, and Electricity and Magnetism.

Descriptors :   *ELECTROMAGNETIC FIELDS, *ELECTROSTATICS, ELECTRICITY, MAGNETIC PROPERTIES, MECHANICS, PHYSICS, REASONING, EDUCATION

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE