The textbook discusses the sections of physics: «Molecular physics», «Thermodynamics», «Electricity and magnetism» The main purpose of the publication is to give an idea of the basic fundamental physical laws of these sections of physics, the main methods and approaches for analyzing physical phenomena, to show methods for solving basic problems. For a deeper assimilation of the material, characteristic tasks are given, some of which are solved, the rest are offered for independent solution. The textbook is intended for studying the discipline "Physics" in all specialties and professions of secondary vocational education .