Key words: principle of continuity, computer simulation, two-body problems, general physics course, quantum mechanics, molecular physics, optics, atomic physics.

Abstract. The results of the integrated use of the principle of continuity and computer modeling in the study of two-body interactions in the courses of mechanics (gravitational interaction), molecular physics, optics, atomic physics, and quantum mechanics (electromagnetic effects) from a unified perspective on different in nature physical phenomena during lecture and other types of classes at higher educational institutions are presented. It is shown that by creating a close connection between the principle of continuity and demonstration computer modeling of the phenomena under study, significant success can be achieved in the assimilation of various educational materials. An important component of the application of the principle of educational process continuity, which is conditioned with the visual demonstration of the studied material by means of using the achievements of modern information technologies and the choice of appropriate effective computer programs, was shown. The proprietary system of computer algebra Mathematica, developed by Wolfram Research, was chosen as such a system. The resulting experience showed the advantage of general-purpose computer algebra methods over object-oriented high-level general-purpose programming languages when demonstrating computer experiments. It was shown that the teacher’s computer literacy and his virtuoso mastery of the techniques of using computer programs had a significant impact on the students’ attitude both to the teacher and to the material being studied. At the same time the teacher’s work should follow the principle: the study of any physical phenomenon should be as complete as possible, however, requiring returning to it during the study of subsequent sections on the basis of more general and universal regularities.