Reports a student-computer dialog for beginning or intermediate physics classes. This dialog enables the student to take some initiative in showing that energy conservation in one dimension is a consequence of the laws of motion. (DS)

Presents the theoretical explanation of the observation that when a pen that is stuck in a hard rubber ball and dropped, the pen may bounce to several times the dropped height. Includes the procedure and models created to explain the observations. (DS)

Presents information about the nucleus gained by studies of electron scattering. Discusses what can be implied about the shape of the charge distribution, the nucleus positions, the vibrational modes of the nucleus, the momentum of the nucleus, and the granularity and core structures of the nucleus. (DS)

Describes an instructional method in secondary school mathematics applicable to physics instruction, to develop conceptual understanding of motion word problems. Distance, rate, and time are defined, used as variables and considered with relative motion as a unifying concept. (JM)

Presents the procedures, results, and conclusions of a study designed to determine the relationships between (1) teachers' backgrounds, (2) personalities, and (3) attitudes toward physics and student learning. Fifty-one randomly selected physics teachers and their students provided data for the study of teachers' backgrounds and attitudes. In the…

Discusses the reasons for the current shortage of jobs for physicists in the United States. Data showing the supply and demand for physicists, and the past as well as projected enrollments of graduate and undergraduate physics students are presented. (LC)