This book is a comprehensive aid for the Physics Orientation course of the 3rd Grade of Lyceum. Each chapter contains:

• Theory questions
• Basic solved exercises with detailed solutions
• Topics for answering, which include:
• exercises for practice
• theory-judgment questions
• closed-type questions (the 1st topic of the exams)
• open-type questions (the 2nd topic of the exams)
• exercises (the 3rd topic of the exams)
• problems (the 4th topic of the exams)

We suggest you pay special attention to the open-type questions (the 2nd topic of the exams). With these questions, you will understand the "subtle" points of the material in each chapter and they are an excellent practice for the exercises and problems you will solve subsequently.

At the end of the book, there are detailed answers to all the topics for answering.