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The Online Physics Olympiad (OPhO) is an annual team based physics competition for both high school students and undergraduates of all levels. Teams of up to three will compete in two stages:

• Open: An exciting multi-day competition where teams race against each other to solve questions with numerical answers, ranging from the standard high school curriculum to the International Physics Olympiad level. Both speed and accuracy will be important.
• Invitational: Top teams will be invited to the Invitational round, where they will submit full solutions to more challenging multi-part questions. Solutions will be marked by the OPHO team.

New From the feedback we have received, we may run the 2021 competition slightly differently. As a result: the number of questions, the time allotted, and the dates of the competition have not yet been finalized.

New OPhO Problem Writer Applications are out! You can fill it out here. The deadline to apply is Monday December 14th 11:59 GMT.