Asian Physics Olympiad

The Asian Physics Olympiad (APhO) is an annual physics competition for high school students from Asia and Oceania regions. It is one of the International Science Olympiads. It was initiated in the year 2000 by Indonesia. The first APhO was hosted by Indonesia in 2000.

APhO has its origins in the International Physics Olympiad and is conducted according to similar statutes (One five-hour theoretical examination and one or two laboratory examinations). It is usually held about two months before the IPhO and can also be seen as additional training for the teams.APhO history

Each national delegation is made up of eight competitors (unlike five in the IPhO) plus two leaders. Observers may also accompany a national team. The leaders are involved in the selection, preparation and translation of the exam tasks, and the translation and marking of exam papers. The students compete as individuals, and must sit through intensive theoretical and laboratory examinations. For their efforts the students can be awarded a medal (gold, silver or bronze) or an honorable mention.

History In 1999, the team leader of Indonesia, Prof. Yohanes Surya, Ph.D., together with the president of IPhO, Prof. Waldemar Gorzkowski, undertook to create and organize the first APhO, which was held in Indonesia, between April 24 and May 2, 2000. At this time, prof. Gorzkowski was also working in Indonesia to help with the IPhO team. The event attracted participants from 12 Asian countries. It now is attended by up to 27 countries.

Actively participating countries include Australia, Azerbaijan, Bangladesh, Cambodia, China, Hong Kong, India, Indonesia, Israel, Kazakhstan, Kyrgyzstan, Macau, Malaysia, Mongolia, Nepal, Russia, Saudi Arabia, Singapore, Sri Lanka, Taiwan, Tajikistan, Thailand, and Vietnam. Romania has participated in guest teams in the past years.

Differences between APhO and IPhO APhO has 8 students in each delegation, while IPhO has 5.

The award system In 2001, the IPhO International Board accepted a new system of awarding the prizes. The new system, designed by Cyril Isenberg and Dr. Gunter Lind was based on a relative number of contestants for each type of award, instead of the score boundaries defined by percentage of the best contestant's score.

This was not acceptable for APhO, because the average level of contestants is different. The old system remained in power for APhO since the beginning up to 9th APhO in Mongolia, where the leaders voted for replacing it by a new award system suggested by Dr. Eli Raz from the Israeli delegation. The new system, sometimes unofficially referred to as the Israeli Award System, is based on a reference score that is the lowest between twice the median score and the mean score of the top 3 participants. It was first used on 10th APhO in Thailand .

Summary Information on previous years of the APhO: NumberYear City Country Date TeamsAbsolute WinnerScoreBest TheoryScoreBest ExperimentScoreCutoffs (G/S/B/HM)1 2000 Tangerang April 23 – May 2, 200010Song Jun-liang (China)44.75/5038/33/27/212 2001 Taipei April 22 – May 1, 200112Hsin-Yu Tsai (Taiwan)34.50/50Wei-Yin Chen (Taiwan)Hsin-Yu Tsai (Taiwan)28/25/20/163 2002 Singapore May 6–14, 200215Gu Chunhui (China)40.59/50Agustinus Peter Sahanggamu (Indonesia)Fan Xiangjun (China)35/30/25/194 2003 Bangkok April 20–29, 200310Pawit Sangchant (Thailand)45.90/5040/34/29/225 2004 Hanoi April 26 – May 4, 200413Ruitian Lang (China)45.10/50Ruitian Lang (China)27.90/30Yeming Shi (China)19.75/2039/34/28/226 2005 Pekanbaru April 24 – May 2, 200517Li Fang (China)45.60/50Yin-Hsuan Lin (Taiwan)29.00/30Han-Hsuan Lin (Taiwan)19.15/2040/35/29/227 2006 Almaty April 22–30, 200618Zhu Li (China)44.30/50Wang Xingze (China)Ho Pangus (Indonesia)39/34/28/218 2007 Shanghai April 21–29, 200722Yun Yang (China)43.30/50Han Yu Zhu (China)Chang-Chi Wu (Chinese Taipei)38/33/28/219 2008 Ulaanbaatar April 20–28, 200818Ji He (China)42.70/50Ying-Yu Ho (Taiwan)Bo-Yu Chu (Taiwan)37/32/27/2010 2009 Bangkok April 24 – May 2, 200915Lei Jin (China)47.50/50Xiong Zhaoxi (China)Winson Tanputraman (Indonesia)42/36/30/2311 2010 Taipei April 23 – May 1, 201016Szu-Po Wang (Taiwan)43.80/50Szu-Po Wang (Taiwan)Tzu-Ming Hsu (Taiwan)32/28/23/1812 2011 Tel Aviv May 1–9, 201116Yukai Wu (China)42.60/50Yukai Wu (China)Tzu-Ming Hsu (Taiwan)31/27/22/1713 2012 New Delhi April 30 – May 7, 201221Wenjie Yao (China)43.60/50Shang Liu (China)Wenjie Yao (China)35/31/25/1914 2013 Bogor May 5–13, 201320Himawan Wicaksono Winarto (Indonesia)35.90/50Bo Chen (China)Himawan Wicaksono Winarto (Indonesia)24/20/17/1315 2014 Singapore May 11–19, 201427Sun Yudong (China)45.50/50Chang Cyuan-Han (Taiwan)Zhang Jingyun (China)40/34/29/2216 2015 Hangzhou May 3–11, 201525Jinchao Zhao (China)48.00/50Jinchao Zhao (China)Jinchao Zhao (China)30/26/21/1617 2016 Hong Kong May 1–9, 201627Tiancheng Zhang (China)48.90/50Tiancheng Zhang (China)Peng Chen (China)38/33/28/2118 2017 Yakutsk May 1–9, 201724Yaozheng Zhu (China)44.45/50Yaozheng Zhu (China)26.25/30Yaozheng Zhu (China) Vasily Yugov (Russia)18.20/2026/23/19/1419 2018HanoiMay 5–15, 201825Chen Tianyang (China)39.07/50Xu Yizhou (China)Grigorii Bobkov (Russia)24/21/17/1320 2019 Adelaide May 5–13, 201923Grigorii Bobkov (Russia)33.40/50Ruoyu Yan (China)23.90/30Rassul Magauin (Kazakhstan)12.60/2028/25/20/16 2020 Not held due to the COVID-19 pandemic212021 Taipei (online) May 17–24, 202126Manh Quan Nguyen (Vietnam)33.85/50Matvei Kniazev (Russia)16.60/30Manh Quan Nguyen (Vietnam)17.85/2022/19/16/12222022 Dehradun (online)May 21–31, 202227Fredy Yip (Australia)47.60/50Li Yitang (China)28.70/30Fredy Yip (Australia)19.40/2042/36/30/23232023UlaanbaatarMay 22–30, 202324Chengchao Lang (China)33.50/50Chengchao Lang (China)23.60/30Egor Potapov (Russia)13.40/2019/16/13/10242024KamparJune 3–10, 202428Alexandru Momoiu (Romania – Guest Team)

Qian Kunxiao (China)45.55/50

43.20/50Pan Haoyang (China)29.80/30Alexandru Momoiu (Romania – Guest Team)

Qian Kunxiao (China)16.60/20

15.80/2037/35/30/24252025 DhahranMay 4–12, 202530Hyeokjoon Lee (South Korea)38.16/50Chen Honghua (China)

Niu Weiran (China)30.00/30Hyeokjoon Lee (South Korea)8.26/2029/23/16/8262026 BusanMay 17–25, 202627Yuanke Li (China)48.90/50Yuanke Li (China)

Yukai Zhang (China)

Lincoln Liu (Hong Kong)30.00/30Yuanke Li (China)18.90/2038/30/23/16272027 Nakhon Ratchasima

Asian Physics Olympiad

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