Sticking to one IPhO paper until you can solve it 100% allows you to fully understand and master the concepts and problem-solving techniques required for the International Physics Olympiad. This can greatly improve your chances of success in the competition.
The amount of time you should spend on one IPhO paper before moving on to another varies for each individual. It depends on your current level of understanding and the difficulty of the paper. It is important to not rush through the paper and to fully grasp the concepts before moving on.
No, it is not necessary to solve one IPhO paper 100% before attempting another. However, it is recommended to fully understand and master the concepts in one paper before moving on to another. This will help build a strong foundation for solving more difficult problems in the future.
If you are unable to solve a particular problem in an IPhO paper, do not get discouraged. Take a break and come back to it later with a fresh perspective. You can also seek help from a teacher or mentor to guide you through the problem-solving process.
You can track your progress by keeping a record of the IPhO papers you have attempted and the ones you have solved 100%. This will help you identify your strengths and weaknesses and focus on areas that need improvement. You can also participate in mock tests or practice sessions to assess your progress.