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The textbook is compiled in accordance with the current physics curriculum for the 9th grade of secondary schools and contains problems differentiated by three levels of difficulty . Examples of solving problems are given; answers to most problems are given, as well as selective instructions and solutions. Self-check tests and answers to them are included. The presence of the same type of tasks allows for an optimal selection of tasks for homework and independent work. Problems for the curious will help students to test the depth of their knowledge and prepare for physics competitions. The collection contains an appendix consisting of reference tables and a mathematical reference book.

Intended for 9th grade students of secondary schools and physics teachers.