International Physics Olympiad
Encyclopedia
The International Physics Olympiad (IPhO) is an annual physics
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

 competition for high school students. It is one of the International Science Olympiad
International Science Olympiad
The International Science Olympiads are a group of worldwide annual competitions in various areas of science. The competitions are designed for the 4-6 best high school students from each participating country selected through internal National Science Olympiads, with the exception of the IOL,...

s. The first IPhO was held in Warsaw
Warsaw
Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

, Poland in 1967.

Each national delegation is made up of at most five student competitors plus two leaders, selected on a national level. Observers may also accompany a national team. The students compete as individuals, and must sit for intensive theoretical and laboratory examinations. For their efforts the students can be awarded gold, silver, or bronze medals or an honourable mention.

The theoretical examination lasts 5 hours and consists of three questions. Usually these questions involve more than one part. The practical examination may consist of one laboratory examination of five hours, or two, which together take up the full five hours.

History

Several months before the first IPhO took place in 1967, invitations were sent to all the Central European countries. The invitations were accepted by Bulgaria, Czechoslovakia
Czechoslovak Socialist Republic
The Czechoslovak Socialist Republic was the official name of Czechoslovakia from 1960 until end of 1989 , a Soviet satellite state of the Eastern Bloc....

, Hungary
People's Republic of Hungary
The People's Republic of Hungary or Hungarian People's Republic was the official state name of Hungary from 1949 to 1989 during its Communist period under the guidance of the Soviet Union. The state remained in existence until 1989 when opposition forces consolidated in forcing the regime to...

 and Romania
Communist Romania
Communist Romania was the period in Romanian history when that country was a Soviet-aligned communist state in the Eastern Bloc, with the dominant role of Romanian Communist Party enshrined in its successive constitutions...

 (five countries including Poland
People's Republic of Poland
The People's Republic of Poland was the official name of Poland from 1952 to 1990. Although the Soviet Union took control of the country immediately after the liberation from Nazi Germany in 1944, the name of the state was not changed until eight years later...

, the organiser of the competition). Each team consisted of three secondary school students accompanied by one supervisor. The competition was arranged along the lines of the final stage of the Polish Physics Olympiad: one day for theoretical problems and one day for carrying out an experiment. One obvious difference was that the participants had to wait for the scripts to be marked. During the waiting period the organisers arranged two excursions by plane to Krak
Krak
Krak can refer to:* Al Karak, a region and castle in Jordan* Krak des Chevaliers, a former Crusader castle in Syria* Krakus, a legendary Polish king...

 and to Gdańsk
Gdansk
Gdańsk is a Polish city on the Baltic coast, at the centre of the country's fourth-largest metropolitan area.The city lies on the southern edge of Gdańsk Bay , in a conurbation with the city of Gdynia, spa town of Sopot, and suburban communities, which together form a metropolitan area called the...

. At the first IPhO the students had to solve four theoretical problems and one experimental problem.

The second Olympiad was organised by Prof. Rezső Kunfalvi in Budapest
Budapest
Budapest is the capital of Hungary. As the largest city of Hungary, it is the country's principal political, cultural, commercial, industrial, and transportation centre. In 2011, Budapest had 1,733,685 inhabitants, down from its 1989 peak of 2,113,645 due to suburbanization. The Budapest Commuter...

, Hungary
People's Republic of Hungary
The People's Republic of Hungary or Hungarian People's Republic was the official state name of Hungary from 1949 to 1989 during its Communist period under the guidance of the Soviet Union. The state remained in existence until 1989 when opposition forces consolidated in forcing the regime to...

, in 1968. Eight countries took part in that competition. The German Democratic Republic
German Democratic Republic
The German Democratic Republic , informally called East Germany by West Germany and other countries, was a socialist state established in 1949 in the Soviet zone of occupied Germany, including East Berlin of the Allied-occupied capital city...

, the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 and Yugoslavia
Socialist Federal Republic of Yugoslavia
The Socialist Federal Republic of Yugoslavia was the Yugoslav state that existed from the abolition of the Yugoslav monarchy until it was dissolved in 1992 amid the Yugoslav Wars. It was a socialist state and a federation made up of six socialist republics: Bosnia and Herzegovina, Croatia,...

 joined the participating countries. Again, each country was represented by three secondary school students and one supervisor. Some time before the second IPhO a preliminary version of the Statutes and the Syllabus were produced. Later these documents were officially accepted by the International Board consisting of the supervisors of the teams that participated in the competition. This took place during a special meeting organised in Brno
Brno
Brno by population and area is the second largest city in the Czech Republic, the largest Moravian city, and the historical capital city of the Margraviate of Moravia. Brno is the administrative centre of the South Moravian Region where it forms a separate district Brno-City District...

, Czechoslovakia
Czechoslovak Socialist Republic
The Czechoslovak Socialist Republic was the official name of Czechoslovakia from 1960 until end of 1989 , a Soviet satellite state of the Eastern Bloc....

, several months after the second IPhO.

The third IPhO was arranged by Prof. Rostislav Kostial in Brno
Brno
Brno by population and area is the second largest city in the Czech Republic, the largest Moravian city, and the historical capital city of the Margraviate of Moravia. Brno is the administrative centre of the South Moravian Region where it forms a separate district Brno-City District...

, Czechoslovakia
Czechoslovak Socialist Republic
The Czechoslovak Socialist Republic was the official name of Czechoslovakia from 1960 until end of 1989 , a Soviet satellite state of the Eastern Bloc....

, in 1969. On that occasion each team consisted of five students and two supervisors. The competition in Brno was organised according to the official Statutes accepted earlier.

The next Olympiad took place in Moscow
Moscow
Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

, Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

, in 1970. Each country was represented by six students and two supervisors. During that Olympiad several small changes were introduced into the Statutes.

Since the fifth IPhO, held in Sofia
Sofia
Sofia is the capital and largest city of Bulgaria and the 12th largest city in the European Union with a population of 1.27 million people. It is located in western Bulgaria, at the foot of Mount Vitosha and approximately at the centre of the Balkan Peninsula.Prehistoric settlements were excavated...

, Bulgaria, in 1971, each team has consisted of five pupils and two supervisors. In 1978 and 1980, the IPhO was not organized. This was due to the accession of the Western countries. The first western country to participate was France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

. At first, the few Western countries participating declined to accept the principle that the IPhO be organized every second year in a Western
Western Bloc
The Western Bloc or Capitalist Bloc during the Cold War refers to the powers allied with the United States and NATO against the Soviet Union and the Warsaw Pact...

 and Eastern bloc
Eastern bloc
The term Eastern Bloc or Communist Bloc refers to the former communist states of Eastern and Central Europe, generally the Soviet Union and the countries of the Warsaw Pact...

 country. Thus the Eastern block countries declined from organising the 1978 and 1980 olympiads. From 1982 onwards, the yearly competition was resumed as there were enough participating Western countries to share the load. At present, the venue of the Olympiad is decided for years ahead. After accession into IPhO, every country must notify the others within three years about its willingness to host the IPhO. After this, the country is placed on a waiting list which as of 2006 stretches well into 2050s. The failure to organize the IPhO on turn will lead to temporary expulsion from the IPhO. This happened to France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 in 1986.

Structure of the Competition

The competition lasts for two days. One day is devoted to theoretical problems (three problems involving at least four areas of physics taught in secondary schools, total number of marks is 30). Another day is devoted to experimental problems (one or two problems, total number of marks 20). These two days are separated by at least one day of rest. On both occasions the time allotted for solving the problems is five hours. Each team consists of students from general or technical secondary schools (not colleges or universities) or have graduated but are yet to enter university, and must be under the age of 20. Typically each team consists of five students (pupils) and two supervisors.

Distribution of medals

The minimal scores required for Olympic medals and honourable mentions are chosen by the organizers according to the following rules: A gold medal should be awarded to the top 8% of the participants. A silver medal or better should be awarded to the top 25%. A bronze medal or better should be awarded to the top 50%. An honourable mention or better should be awarded to the top 67%. All other participants receive certificates of participation. The participant with the highest score (absolute winner) receives a special prize, in addition to a gold medal.

List of past and future olympiads

!Number
!Year
!Host Country
!Host City
!Winner
!Score> |54
|2023
| Iran
|TBD
|TBD
|TBD> |53
|2022
| Japan
|TBD
|TBD
|TBD> |52
|2021
| Indonesia
|TBD
|TBD
|TBD> |51
|2020
| Lithuania
|TBD
|TBD
|TBD> |50
|2019
| Israel
|TBD
|TBD
|TBD> |49
|2018
| Portugal
|TBD
|TBD
|TBD> |48
|2017
| Moldova
|TBD
|TBD
|TBD> |47
|2016
| Switzerland and  Liechtenstein
|TBD
|TBD
|TBD> |46
|2015
| India
|TBD
|TBD
|TBD> |45
|2014
| Slovenia
|TBD
|TBD
|TBD> |44
|2013
| Denmark
|TBD
|TBD
|TBD> |43
|2012
| Estonia
|Tartu
Tartu
Tartu is the second largest city of Estonia. In contrast to Estonia's political and financial capital Tallinn, Tartu is often considered the intellectual and cultural hub, especially since it is home to Estonia's oldest and most renowned university. Situated 186 km southeast of Tallinn, the...

 and Tallinn
Tallinn
Tallinn is the capital and largest city of Estonia. It occupies an area of with a population of 414,940. It is situated on the northern coast of the country, on the banks of the Gulf of Finland, south of Helsinki, east of Stockholm and west of Saint Petersburg. Tallinn's Old Town is in the list...


|TBD
|TBD> |42
|2011
| Thailand
|Bangkok
Bangkok
Bangkok is the capital and largest urban area city in Thailand. It is known in Thai as Krung Thep Maha Nakhon or simply Krung Thep , meaning "city of angels." The full name of Bangkok is Krung Thep Mahanakhon Amon Rattanakosin Mahintharayutthaya Mahadilok Phop Noppharat Ratchathani Burirom...

> |41
|2010
| Independent State of Croatia
|Zagreb
Zagreb
Zagreb is the capital and the largest city of the Republic of Croatia. It is in the northwest of the country, along the Sava river, at the southern slopes of the Medvednica mountain. Zagreb lies at an elevation of approximately above sea level. According to the last official census, Zagreb's city...

> |40
|2009
| Mexico
|Mérida
Mérida, Yucatán
Mérida is the capital and largest city of the Mexican state of Yucatán and the Yucatán Peninsula. It is located in the northwest part of the state, about from the Gulf of Mexico coast...

> |39
|2008
| Vietnam
|Hanoi
Hanoi
Hanoi , is the capital of Vietnam and the country's second largest city. Its population in 2009 was estimated at 2.6 million for urban districts, 6.5 million for the metropolitan jurisdiction. From 1010 until 1802, it was the most important political centre of Vietnam...

> |38
|2007
| Iran
|Isfahan> |37
|2006
| Singapore
|Singapore
Singapore
Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...

> |36
|2005
| Spain
|Salamanca
Salamanca
Salamanca is a city in western Spain, in the community of Castile and León. Because it is known for its beautiful buildings and urban environment, the Old City was declared a UNESCO World Heritage Site in 1988. It is the most important university city in Spain and is known for its contributions to...

> |35
|2004
| South Korea
|Pohang
Pohang
Pohang is a city in North Gyeongsang Province, South Korea, and a main seaport in the Daegu-Gyeongbuk region. The built-up area of Pohang is located on the alluvium of the mouth of the Hyeongsan River...

> |34
|2003
| Republic of China
|Taipei
Taipei
Taipei City is the capital of the Republic of China and the central city of the largest metropolitan area of Taiwan. Situated at the northern tip of the island, Taipei is located on the Tamsui River, and is about 25 km southwest of Keelung, its port on the Pacific Ocean...

> |33
|2002
| Indonesia
|Bali
Bali
Bali is an Indonesian island located in the westernmost end of the Lesser Sunda Islands, lying between Java to the west and Lombok to the east...

> |32
|2001
| Turkey
|Antalya
Antalya
Antalya is a city on the Mediterranean coast of southwestern Turkey. With a population 1,001,318 as of 2010. It is the eighth most populous city in Turkey and country's biggest international sea resort.- History :...

> |31
|2000
| United Kingdom
|Leicester
Leicester
Leicester is a city and unitary authority in the East Midlands of England, and the county town of Leicestershire. The city lies on the River Soar and at the edge of the National Forest...

> |30
|1999
| Italy
|Padova> |29
|1998
| Iceland
|Reykjavík
Reykjavík
Reykjavík is the capital and largest city in Iceland.Its latitude at 64°08' N makes it the world's northernmost capital of a sovereign state. It is located in southwestern Iceland, on the southern shore of Faxaflói Bay...

> |28
|1997
| Canada
|Sudbury> |27
|1996
| Norway
|Oslo
Oslo
Oslo is a municipality, as well as the capital and most populous city in Norway. As a municipality , it was established on 1 January 1838. Founded around 1048 by King Harald III of Norway, the city was largely destroyed by fire in 1624. The city was moved under the reign of Denmark–Norway's King...

> |26
|1995
| Australia
|Canberra
Canberra
Canberra is the capital city of Australia. With a population of over 345,000, it is Australia's largest inland city and the eighth-largest city overall. The city is located at the northern end of the Australian Capital Territory , south-west of Sydney, and north-east of Melbourne...

> |25
|1994
| Mainland China
|Beijing
Beijing
Beijing , also known as Peking , is the capital of the People's Republic of China and one of the most populous cities in the world, with a population of 19,612,368 as of 2010. The city is the country's political, cultural, and educational center, and home to the headquarters for most of China's...

> |24
|1993
| United States
|Williamsburg
Williamsburg, Virginia
Williamsburg is an independent city located on the Virginia Peninsula in the Hampton Roads metropolitan area of Virginia, USA. As of the 2010 Census, the city had an estimated population of 14,068. It is bordered by James City County and York County, and is an independent city...

> |23
|1992
| Finland
|Helsinki
Helsinki
Helsinki is the capital and largest city in Finland. It is in the region of Uusimaa, located in southern Finland, on the shore of the Gulf of Finland, an arm of the Baltic Sea. The population of the city of Helsinki is , making it by far the most populous municipality in Finland. Helsinki is...

> |22
|1991
| Cuba
|Havana
Havana
Havana is the capital city, province, major port, and leading commercial centre of Cuba. The city proper has a population of 2.1 million inhabitants, and it spans a total of — making it the largest city in the Caribbean region, and the most populous...

> |21
|1990
| Netherlands
|Groningen> |20
|1989
| Poland
|Warsaw
Warsaw
Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

> |19
|1988
| Austria
|Bad Ischl
Bad Ischl
Bad Ischl is a spa town in Austria. It lies in the southern part of Upper Austria, at the Traun River in the centre of the Salzkammergut region. The town consists of the Katastralgemeinden Ahorn, Bad Ischl, Haiden, Jainzen, Kaltenbach, Lauffen, Lindau, Pfandl, Perneck, Reiterndorf and Rettenbach...

> |18
|1987
| German Democratic Republic
|Jena
Jena
Jena is a university city in central Germany on the river Saale. It has a population of approx. 103,000 and is the second largest city in the federal state of Thuringia, after Erfurt.-History:Jena was first mentioned in an 1182 document...

> |17
|1986
| United Kingdom
|London-Harrow
Harrow, London
Harrow is an area in the London Borough of Harrow, northwest London, United Kingdom. It is a suburban area and is situated 12.2 miles northwest of Charing Cross...

> |16
|1985
| Socialist Federal Republic of Yugoslavia
|Portorož
Portorož
- External links :**...

> |15
|1984
| Sweden
|Sigtuna
Sigtuna
Sigtuna is a locality situated in Sigtuna Municipality, Stockholm County, Sweden with 18 inhabitants in 2005. It is the namesake of the municipality even though the seat is in Märsta....

> |14
|1983
| Kingdom of Romania
|Bucharest
Bucharest
Bucharest is the capital municipality, cultural, industrial, and financial centre of Romania. It is the largest city in Romania, located in the southeast of the country, at , and lies on the banks of the Dâmbovița River....

> |13
|1982
| West Germany
|Malente
Malente
This Article is about a German location. For the DJ with the same name, see Malente .Malente is a municipality in the district of Ostholstein, in Schleswig-Holstein, Germany. It is about 5 km northwest of Eutin and 35 km north of Lübeck....

> |12
|1981
| Kingdom of Bulgaria
|Varna
Varna
Varna is the largest city and seaside resort on the Bulgarian Black Sea Coast and third-largest in Bulgaria after Sofia and Plovdiv, with a population of 334,870 inhabitants according to Census 2011...

> |
|1980
|Not held
|> |11
|1979
| Soviet Union
|Moscow
Moscow
Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

> |
|1978
|Not held
|> |10
|1977
| Czechoslovakia
|Hradec Králové
Hradec Králové
Hradec Králové is a city of the Czech Republic, in the Hradec Králové Region of Bohemia. The city's economy is based on food-processing technology, photochemical, and electronics manufacture. Traditional industries include musical instrument manufacturing – the best known being PETROF pianos...

> |9
|1976
| Hungary
|Budapest
Budapest
Budapest is the capital of Hungary. As the largest city of Hungary, it is the country's principal political, cultural, commercial, industrial, and transportation centre. In 2011, Budapest had 1,733,685 inhabitants, down from its 1989 peak of 2,113,645 due to suburbanization. The Budapest Commuter...

> |8
|1975
| German Democratic Republic
|Güstrow
Güstrow
Güstrow is a town in Mecklenburg-Western Pomerania, Germany the capital of the district of Güstrow. It has a population of 30,500 and is the seventh largest town in Mecklenburg-Western Pomerania. Since 2006 Güstrow has the official suffix Barlachstadt.-Geography:The town of Güstrow is located...

> |7
|1974
| Poland
|Warsaw
Warsaw
Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

> |
|1973
|Not held
|> |6
|1972
| Kingdom of Romania
|Bucharest
Bucharest
Bucharest is the capital municipality, cultural, industrial, and financial centre of Romania. It is the largest city in Romania, located in the southeast of the country, at , and lies on the banks of the Dâmbovița River....

> |5
|1971
| Kingdom of Bulgaria
|Sofia
Sofia
Sofia is the capital and largest city of Bulgaria and the 12th largest city in the European Union with a population of 1.27 million people. It is located in western Bulgaria, at the foot of Mount Vitosha and approximately at the centre of the Balkan Peninsula.Prehistoric settlements were excavated...

> |4
|1970
| Soviet Union
|Moscow
Moscow
Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

> |2
|1968
| Hungary
|Budapest
Budapest
Budapest is the capital of Hungary. As the largest city of Hungary, it is the country's principal political, cultural, commercial, industrial, and transportation centre. In 2011, Budapest had 1,733,685 inhabitants, down from its 1989 peak of 2,113,645 due to suburbanization. The Budapest Commuter...

>
 Chinese Taipei Hsu Tzu-ming 48,50 (out of 50)
 People's Republic of China Yu Yichao 48,65 (50)
 People's Republic of China Shi Handuo 48,20 (50)
 People's Republic of China Tan Longzhi 44,60 (50)
 South Korea Choi Youngjoon 48,80 (50)
 Indonesia Jonathan Pradana Mailoa 47,20 (50)
 Hungary Gábor Halász
 Chinese Taipei Lin Ying-hsuan
49,50 (50)
 Belarus Alexander Mikhalychev 47,70 (50)
 United States Pavel Batrachenko 42,30 (50)
 Vietnam Ngoc Duong Dang 45,40 (50)
 Russia Daniyar Nourgaliev 47,55 (50)
 People's Republic of China Lu Ying 43,4 (50)
 Russia Konstantin Kravtsov 49,8 (50)
 People's Republic of China Chen Yuao 47,5 (50)
 Iran Sayed Mehdi Anvari 47,25 (50)
 People's Republic of China Liu Yurun 47,5 (50)
 People's Republic of China Yu Haitao 95 (100)
 People's Republic of China Yang Liang 44,3 (50)
 People's Republic of China Zhang Junan
 Germany Harald Pfeiffer
40,65 (50)
 People's Republic of China Chen Han 44 (50)
 Soviet Union Timour Tchoutenko 48,2 (50)
 United Kingdom Alexander H. Barnett 45,7 (50)
 United States Steven Gubser 46,33 (50)
 United Kingdom Conrad McDonnell 39,38 (50)
 Romania Catalin Malureanu 49 (50)
 Soviet Union Oleg Volkov 37,9 (50)
 Czechoslovakia Patrik Španĕl 42,5 (50)
 Netherlands Jan de Boer
 Romania Sorin Spânoche
43 (50)
 Bulgaria Ivan Ivanov 43,75 (50)
 West Germany Manfred Lehn 43 (50)
 Soviet Union Aleksandr Goutine 47 (50)
 Soviet Union Maksim Tsipine 43 (50)
 Czechoslovakia Jiří Svoboda 49 (50)
 Poland Rafal Łubis 47,5 (50)
 Soviet Union Sergueï Korchounov 43 (50)
 Poland Jarosław Deminet
 Poland Jerzy Tarasiuk
46 (50)
 Hungary Zoltán Szabó 57 (60)
 Czechoslovakia Karel Šafařík
 Hungary Ádám Tichy-Rács
48,6 (60)
 Soviet Union Mikhaïl Volochine >- valign="top"
|3
|1969
| Czechoslovakia
|Brno
Brno
Brno by population and area is the second largest city in the Czech Republic, the largest Moravian city, and the historical capital city of the Margraviate of Moravia. Brno is the administrative centre of the South Moravian Region where it forms a separate district Brno-City District...

 Czechoslovakia Mojmír Šob 48 (48)
 Poland Tomasz Kręglewski >- valign="top"
|1
|1967
| Poland
|Warsaw
Warsaw
Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...


|  Hungary Sándor Szalay
| 39 (40)


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