Jaan Kalda's freely distributed handouts on physics problem-solving techniques for olympiad preparation.
The 2026 International Physics Olympiad website hosts competition problems, rules, and study materials for the world's premier high-school physics competition.
Official IPhO 2025 site with competition problems, solutions, and regulations.
Physics Cup is an online physics competition for secondary and university students with difficult short-answer problems designed to be harder than traditional olympiads.
Archive of Physics and Mathematics Olympiad results announcements.
Archive of past problems from the International Young Physicists Tournament with solutions.
Hong Kong Physics Olympiad run by HKUST with competition information and past problems.
Nordic-Baltic Physics Olympiad with past problems and results for Nordic and Baltic countries.
Official problems and solutions from the 2021 International Physics Olympiad held in Lithuania.
Official problems and solutions from the 2013 International Physics Olympiad held in Denmark.
Official problems, solutions, and regulations from the 2022 International Physics Olympiad competition.
British Physics Olympiad archive with past papers and free official solutions.
Kalda's olympiad problem handouts and materials for advanced secondary students.
Archive of Asian Physics Olympiad competition problems and solutions.
Singapore Physics League community resource providing olympiad and competition preparation materials.
International physics community with olympiad problems and educational resources.
International Olympiad on Astronomy and Astrophysics with past problems, solutions, and country rankings.
Kevin Zhou's handouts on olympiad physics topics with problem walkthroughs.
Complete Round 1 and 2 papers from the British Physics Olympiad with official worked solutions.
Free PDF archive of gifted school olympiad rounds with answer keys.
Aggregated physics and science olympiad problems and resources.