This book presents in detail all the teaching material for the chapters on collisions and oscillations in Physics for the third grade of high school. It includes detailed theory, closed and open type questions, solved exercises - problems, as well as exercises and problems for solving.
- The theory is presented using the question-answer method. At the end of the theory of each chapter, there are questions for review.
- The questions are structured according to the type of questions (closed type - topic 1 of national exams, open type - topic 2 of national exams).
- In the solved exercises-problems of each chapter, the methodology is integrated into key points. It also includes detailed guidance on what the student should not forget after studying the solved example, as well as highlighting which exercises for solving are similar for practice.
- The exercises for solving contain basic concepts that the student must grasp before moving on to the problems for solving, which require more complex thinking.
- In each section (before the closed type questions) there is a detailed study proposal at two levels. The 1st level refers to basic study, while the 2nd level refers to in-depth study.

For all questions, exercises, and problems for solving, there are detailed solutions at the end of the book.