APPLICATION OF THE MODELING COMPUTER ENVIRONMENT FOR IMPLEMENTATION OF EDUCATIONAL DEMONSTRATIONS AND PERFORMANCE OF LABORATORY WORKS

Abstract

Instructional demonstrations, laboratory as well as educational research work are an important part of modern school education and STEM education. Demonstrations, laboratory and research work in the physical and physical-technical areas are usually performed using certain equipment, which includes research objects and measuring instruments. Some demonstrations and laboratory work, in particular from the sections “Electrodynamics” and “Electromagnetic vibrations and waves” can be performed using virtual objects and measuring instruments using a simulation computer environment, for example Multisim 11.0. The proposed approach is demonstrated on examples of the implementation of the educational demonstration in physics “Free electromagnetic oscillations of low frequency in an oscillatory circuit” and the laboratory work “Investigation of an electric circuit with a semiconductor diode”. The author has carried out the reproduction of the indicated educational demonstration and laboratory work with the use of real objects and measuring instruments, after which – their modeling in the NI “Multisim 11.0” simulation computer environment. Comparison of the results obtained in real and virtual experiments indicates their identity, which is the basis for using a simulating computer environment in the educational process. The demonstration model of the oscillatory circuit was supplemented to obtain not only an oscillogram of the voltage applied to its elements, but also an oscillogram of the current in it, which allows you to additionally demonstrate the phase shift between voltage and current. For the laboratory work “Investigation of an electrical circuit with a semiconductor diode”, is proposed a research development, which consists in obtaining the current-voltage characteristics of other components, or their combinations using the IV-Analysis tool, which is a component of the NI “Multisim 11.0” environment.