Discusses Newton's long struggle with the concepts of inertia and centrifugal force as an example of high-grade scientific thinking. Discusses the role of textbooks and how they largely emphasize memorization. Suggests that the historical approach can be more time-consuming than textbook-based teaching and that it requires a good understanding of…

In this work, the authors present a commonly used example in electrostatics that could be solved exactly in a conventional manner, yet expressed in a compact form, and simultaneously work out special cases using the method of images. Then, by plotting the potentials and electric fields obtained from these two methods, the authors demonstrate that…

A simple circuit problem treating an inductor, resistor and battery in series has uncovered a basic misconception of first-year students. The misconception is not about circuits or electrical properties but concerns rather the meaning and interpretation of the rate of change (instantaneous slope or derivative) of physical quantities. Resolving the…

Empirical correlations are a practical means of providing approximate answers to problems in physics whose exact solution is otherwise difficult to obtain. The correlations relate quantities that are deemed to be important in the physical situation to which they apply, and can be derived from experimental data by means of dimensional and/or scale…

Describes an effective and efficient method to induce students to do physics homework. (CP)

A study examined in detail the initial encoding of worked-out examples of mechanics problems by "good" and "poor" students, and their subsequent reliance on examples during problem solving. The subjects, three males and five females, were selected from responses to a university campus advertisement. Six of them were working…

The spontaneous use of analogies in problem-solving occurs when a subject first spontaneously shifts his attention to a situation (B) which differs in some significant way from an original problem situation (A), and then tries to apply findings from B to A. This paper describes research on the process with 10 scientifically trained subjects…

In order to propogate information on the World Year of Physics (WYP) and to promote students' appreciation of the significance of this event, the author devised a riddle about Einstein and implemented it at two high schools in Taiwan, with 95 students which were mainly based on Einstein's publications in 1905. During the game 81% of the students…

The study reported here extends the investigation begun by Piaget of content effects to laboratory and naturalistic tasks. If the accuracy and completeness of the subjects' expected variables is related to content, then performance on laboratory and naturalistic tasks should differ systematically. The subjects' expected variables were measured by…

It is conjectured that some skill entering into problem solving in physics courses might be responsible for making these courses so difficult. This might be the case if one or more basic problem-solving skills could not be mastered in the time and practice available. In order to test this hypothesis, a model of the way in which students solve…

Second part of an article describing the use of programmable calculators to solve complex physics problems. (SL)

Develops a graphical method for studying the parallel susceptibility of an antiferromagnetic material. (SL)

Presents a simple model whereby the work per cycle done on an external agent, and a sand reservoir, by a reversible heat engine can be analyzed explicitly. (Author/SL)

This study investigated whether good novice problem solvers have their knowledge arranged around problem types to a greater extent than poor problem solvers have. Twelve problem types (see appendix) were distinguished according to underlying physics principles and 65 knowledge elements were printed on cards for university students to sort.…