Describes the implementation of a trajectory-plotting program for a microcomputer; shows how it may be used to demonstrate the focusing effect of a simple electrostatic lens. The computer program is listed and diagrams are included that show comparisons of trajectories of negative charges in the vicinity of positive charges. (TW)

Describes a heat capacity experiment designed to provide an interactive environment between the student, the experiment, and the computer. Discusses computer software that has been developed so that the entire interaction can be coordinated from the computer keyboard. (TW)

Describes an accurate system for measuring speeds and frequencies with a microcomputer. Explains how the system can give a reasonable graphical representation of velocity and acceleration against time. Gives examples of graphs produced by the program and provides an address to obtain the software for their application. (CW)

Describes some simple computer programs designed to simulate the molecular dynamics of two-dimensional systems with a Lennard-Jones interaction potential. Discusses the use of the software in introductory physics courses at the high school and college level. (TW)

Points out two areas of difficulty in teaching Newtonian dynamics. Describes several alternatives to physics learning using new technology. Details the use of the LOGO computer language in teaching simple Newtonian environments. Suggests the potential for creating new learning experiences in dynamics with new technology. (CW)

Describes efforts of members of the biology and physics departments of Paisley College (Scotland) to develop a simple light-emitter-detector arrangement adapted as a colorimeter interfaced with a microcomputer for use by undergraduate students. Discusses the setup and provides a computer program in BASIC to run it. (CW)

Describes an open-ended computer simulation project that can be used to illustrate the growth of solid crystals in different forms at any level from high school physics to graduate physics. Discusses a simple computer program in BASIC language on an IBM personal computer. Gives examples of simulations. (CW)

Addresses concerns related to how educational software can be designed to accommodate a constructivist approach to learning. Describes features of software which are consistent with a constructivist view and cites examples of physics materials which are appropriate. (ML)