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The aim of the present work is to demonstrate the expediency of using information technologies on the study of Brownian motion. The importance of using such software as VirtualDub, Tracker and Google Sheets for the study of Brownian motion has been substantiated. This made it possible to determine the values that cannot be measured directly (the displacement of the Brownian particle, the size of the Brownian particle and the Avogadro number). The advantage of this method is that all software are free.

Medical physics uses physics knowledge in medicine or healthcare. The question surrounding the methods of measuring temperature is important in medicine. The aim of this article is to explore the possibilities of using Microsoft Excel to study thermometers. The physical concepts and laws related to temperature measurement have been considered. The tools of Microsoft Excel allow us to visualize the results of physics experiments and provide math processing of the data collected in it. Microsoft Excel considerably reduces the time needed to create graphs and calculate physical quantities and allows one to determine physical quantities which cannot be measured directly. As a rule, any measurements have errors. In this case, the technique of evaluating errors using Microsoft Excel was proposed. Some limitations of using Microsoft Excel in the creation of graphs for nonlinear functions have been pointed and suggestions to eliminate them were made.