This volume contains all of the theoretical exercises, problems of the National Secondary School Contests in Physics organized between 1961 and 2000, and their step-by-step solutions in every category. The solutions are useful and interesting not only for the competitors, but thanks to their explanations highlighting the essence of physics, for every secondary school teacher and interested student, too.

Vol 1: 1961-1995
Vol 2: 1996-1997
Vol 3: 1998-2000