Textbook in PDF format This collection of physics problems and solutions is perfect for any aspiring physicist participating in Olympiads or other school competitions. The problems included in this volume have been tried and tested in official competitions, representing ten iterations of the International Pre-Olympic Physics contest held between Romania, Hungary, and Moldova. The problems included cover a broad spectrum of relevant topics and are designed to inspire critical thinking and sharpen problem solving skills, enriching students' understanding and enjoyment of physics beyond the standard school curriculum. Each problem is accompanied by helpful diagrams and detailed solutions, providing readers with clear insights into the underlying physics and mathematical reasoning. Ideal for students, teachers, and mentors preparing for national and international competitions, this book is an indispensable resource for those eager to delve deeper into the wonders of physics. Whether used for independent study or as a teaching aid, this volume offers both intellectual stimulation and practical guidance