List

Russia TST Problems and Solutions

The selection of the Russian IPhO team, run in two stages, X and Y, each with theory, experimental and data-analysis problems; W is a preparatory round for 10th graders. Papers are in Russian.

2026

Russia

Stage X
Theory5 problems
  • 1TheoryГантель с вязкостьюProblemSolution
  • 2TheoryЭффект Герца-КвинкеProblemSolution
  • 3TheoryПроблемы фотографированияProblemSolution
  • 4TheoryProblem 4ProblemSolution
  • 5TheoryТрансформаторыProblemSolution
Experimental2 problems
  • 6ExperimentalЗакон Кулона 2.0ProblemSolution
  • 7ExperimentalОптика стала четчеProblemSolution
Stage Y
Theory6 problems
  • 1TheoryФизика резкиProblemSolution
  • 2TheoryФизика резиныProblemSolution
  • 3TheoryФизика синхротронаProblemSolution
  • 4TheoryПолет на ЛунуProblemSolution
  • 5TheoryЭффект Фарадея в электронном газеProblemSolution
  • 6TheoryВолоконный акселерометрProblemSolution
Experimental2 problems
  • 7ExperimentalТопологический изоляторProblemSolution
  • 8ExperimentalВолны на водеProblemSolution
Stage W
Theory2 problems
  • 1TheoryГаз с переменной теплоемкостьюProblemSolution
  • 2TheoryВращающаяся средаProblemSolution
Data Analysis2 problems
  • 3Data AnalysisИзмерение вязкости смесиProblemSolution
    More materialsAnswer sheet
  • 4Data AnalysisИзмерение вязкости смеси (продвинутый уровень)ProblemSolution
    More materialsAnswer sheet

2025

Russia

Stage X
Theory6 problems
  • 1TheoryКосмический корабль в атмосфереProblemSolution
  • 2TheoryНе ложися на краюProblemSolution
  • 3TheoryЭффект ДжозефсонаProblemSolution
  • 4TheoryВсплывающие пузыриProblemSolution
  • 5TheoryДинамика мембранного потенциалаProblemSolution
  • 6TheoryГоризонты физикиProblemSolution
Experimental2 problems
  • 7ExperimentalТермическая деградация проволокиProblemSolution
  • 8ExperimentalТитрование казеинаProblemSolution
Stage Y
Theory6 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryШары ИрншоуProblemSolution
  • 4TheoryProblem 4ProblemSolution
  • 5TheoryProblem 5ProblemSolution
  • 6TheoryЭлектронная лампаProblemSolution
Experimental2 problems
  • 7ExperimentalЭффект ДоминоProblemSolution
  • 8ExperimentalДлинная линия 2.0ProblemSolution
Stage W
Theory2 problems
Data Analysis1 problemProblem 1ProblemSolution
  • 3Data AnalysisProblem 1ProblemSolution

2024

Russia

Stage X
Theory6 problems
  • 1TheoryФизика дождевых капельProblemSolution
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryНецентральные движения шараProblemSolution
  • 4TheoryДобыча нефтиProblemSolution
  • 5TheoryПрецессия орбиты МеркурияProblemSolution
  • 6TheoryПроводники в магнитном полеProblemSolution
Experimental2 problems
  • 7ExperimentalФерритовый сердечник и трансформаторProblemSolution
  • 8ExperimentalProblem 2ProblemSolution
Data Analysis1 problemProblem 1Problem
  • 9Data AnalysisProblem 1Problem
Stage Y
Theory6 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryProblem 3ProblemSolution
  • 4TheoryProblem 4ProblemSolution
  • 5TheoryProblem 5ProblemSolution
  • 6TheoryПросветление оптикиProblemSolution
Experimental2 problems
  • 7ExperimentalProblem 1ProblemSolution
  • 8ExperimentalProblem 2ProblemSolution
Data Analysis1 problemProblem 1ProblemSolution
  • 9Data AnalysisProblem 1ProblemSolution
Stage W
Theory2 problems
  • 1TheoryСоскальзывающая верёвкаProblemSolution
  • 2TheoryПосреди мостаProblemSolution
Data Analysis1 problemПереход жидкость–парProblemSolution
More materialsAnswer sheet
  • 3Data AnalysisПереход жидкость–парProblemSolution
    More materialsAnswer sheet

2023

Russia

Stage X
Theory6 problems
  • 1TheoryМикрофлюидикаProblemSolution
  • 2TheoryБинарные термодинамические циклыProblemSolution
  • 3TheoryЯвление приливного захватаProblemSolution
  • 4TheoryКакой-то странный спиннер...ProblemSolution
  • 5TheoryТрехфазный токProblemSolution
  • 6TheoryДвижение металлического шара в поле проводаProblemSolution
Experimental2 problems
  • 7ExperimentalЭлектрод-электролитный интерфейсProblemSolution
  • 8ExperimentalЧёткая оптикаProblemSolution
Data Analysis1 problemАнизотропия теплопроводностиProblemSolution
More materialsAnswer sheet
  • 9Data AnalysisАнизотропия теплопроводностиProblemSolution
    More materialsAnswer sheet
Stage Y
Theory6 problems
  • 1TheoryКремниевый фотоумножительProblemSolution
  • 2TheoryДинамика квазичастицProblemSolution
  • 3TheoryГироскопические силы и паразитное трениеProblemSolution
  • 4TheoryРаспространение волн детонацииProblemSolution
  • 5TheoryПрыгающее кольцо ТомсонаProblemSolution
  • 6TheoryИзмерение радиуса звездыProblemSolution
Experimental2 problems
  • 7ExperimentalМост ВинаProblemSolution
  • 8ExperimentalProblem 2Problem
Data Analysis1 problemProblem 1ProblemSolution
  • 9Data AnalysisProblem 1ProblemSolution
Stage W
Theory2 problems
  • 1TheoryКонденсатор с переменным напряжениемProblemSolution
  • 2TheoryProblem 2ProblemSolution
Data Analysis1 problemОпределение показателя преломленияProblemSolution
  • 3Data AnalysisОпределение показателя преломленияProblemSolution

2022

Russia

Stage X
Theory6 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryЧастично неупругая поверхностьProblemSolution
  • 3TheoryСферические аберрацииProblemSolution
  • 4TheoryДва спутникаProblemSolution
  • 5TheoryПена шампанскогоProblemSolution
  • 6TheoryКолебания в заряженном цилиндреProblemSolution
Experimental2 problems
  • 7ExperimentalProblem 1ProblemSolution
  • 8ExperimentalProblem 2ProblemSolution
Data Analysis1 problemProblem 1ProblemSolution
More materialsAnswer sheet
Stage Y
Theory6 problems
  • 1TheoryКлеточные мембраныProblemSolution
  • 2TheoryВлажная адиабатическая атмосфераProblemSolution
  • 3Theory«Рыбий глаз» МаксвеллаProblem
  • 4TheoryСинхронизация метрономовProblemSolution
  • 5TheoryПределы РошаProblemSolution
  • 6TheoryProblem 6ProblemSolution
Experimental1 problemProblem 1ProblemSolution
  • 7ExperimentalProblem 1ProblemSolution
Data Analysis3 problems
  • 8Data AnalysisАнизотропные волноводыProblemSolution
    More materialsAnswer sheet
  • 9Data AnalysisProblem 2ProblemSolution
  • 10Data AnalysisProblem 3ProblemSolution
Stage W
Theory2 problems
Data Analysis1 problemПо стопам Ван-дер-ВаальсаProblemSolution
More materialsAnswer sheet
  • 3Data AnalysisПо стопам Ван-дер-ВаальсаProblemSolution
    More materialsAnswer sheet

2021

Russia

Stage X
Theory7 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryProblem 3ProblemSolution
  • 4TheoryДвойная гантельProblemSolution
  • 5TheoryФонтанирующая цепочкаProblemSolution
  • 6TheoryProblem 6ProblemSolution
  • 7TheoryProblem 7ProblemSolution
Experimental2 problems
  • 8ExperimentalProblem 1ProblemSolution
  • 9ExperimentalProblem 2ProblemSolution
Data Analysis1 problemProblem 1ProblemSolution
  • 10Data AnalysisProblem 1ProblemSolution
Stage Y
Theory6 problems
Experimental1 problemProblem 1ProblemSolution
  • 7ExperimentalProblem 1ProblemSolution
Data Analysis3 problems
  • 8Data AnalysisProblem 1ProblemSolution
  • 9Data AnalysisProblem 2ProblemSolution
  • 10Data AnalysisProblem 3ProblemSolution
Stage W
Theory7 problems
Experimental2 problems
  • 8ExperimentalТрение качения и скольженияProblemSolution
  • 9ExperimentalГлавное – не пересолитьProblemSolution
Data Analysis1 problemProblem 1ProblemSolution
  • 10Data AnalysisProblem 1ProblemSolution

2020

Russia

Stage X
Theory7 problems
  • 1TheoryФизика бильярдных шаровProblemSolution
  • 2TheoryГазовый четырехугольникProblemSolution
  • 3TheoryProblem 3ProblemSolution
  • 4TheoryProblem 4ProblemSolution
  • 5TheoryProblem 5ProblemSolution
  • 6TheoryМагнитная сборка ХалбахаProblemSolution
  • 7TheoryProblem 7ProblemSolution
Experimental2 problems
  • 8ExperimentalProblem 1ProblemSolution
  • 9ExperimentalProblem 2ProblemSolution
Data Analysis1 problemProblem 1ProblemSolution
  • 10Data AnalysisProblem 1ProblemSolution
Stage Y
Theory7 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryМаятник КапицыProblemSolution
  • 4TheoryProblem 4ProblemSolution
  • 5TheoryЭлектроны в магнитном полеProblemSolution
  • 6TheoryProblem 6ProblemSolution
  • 7TheoryProblem 7ProblemSolution
Experimental2 problems
  • 8ExperimentalProblem 1ProblemSolution
  • 9ExperimentalProblem 2ProblemSolution
Data Analysis1 problemПолупроводниковые пластиныProblemSolution
More materialsAnswer sheet
  • 10Data AnalysisПолупроводниковые пластиныProblemSolution
    More materialsAnswer sheet

2019

Russia

Stage X
Theory8 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryProblem 3ProblemSolution
  • 4TheoryProblem 4ProblemSolution
  • 5TheoryProblem 5Problem
  • 6TheoryProblem 6ProblemSolution
  • 7TheoryProblem 7ProblemSolution
  • 8TheoryProblem 8ProblemSolution
Stage Y
Theory6 problems

2018

Russia

Stage X
Theory8 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryProblem 3ProblemSolution
  • 4TheoryProblem 4ProblemSolution
  • 5TheoryProblem 5ProblemSolution
  • 6TheoryУстойчивость различных системProblemSolution
  • 7TheoryProblem 7ProblemSolution
  • 8TheoryКомета Чурюмова–ГерасименкоProblemSolution
Stage Y
Theory6 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryProblem 2Problem
  • 3TheoryProblem 3Problem
  • 4TheoryProblem 4Problem
  • 5TheoryАналеммаProblem
  • 6TheoryProblem 6Problem

2017

Russia

Stage X
Theory6 problems
  • 1TheoryProblem 1Problem
    More materialsPart 2
  • 2TheoryProblem 2Problem
  • 3TheoryProblem 3Problem
    More materialsPart 2
  • 4TheoryProblem 4Problem
  • 5TheoryProblem 5Problem
  • 6TheoryProblem 6Problem
    More materialsPart 2
Stage Y
Theory6 problems
  • 1TheoryProblem 1Problem
    More materialsPart 2Part 3
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryProblem 3Problem
  • 4TheoryProblem 4ProblemSolution
  • 5TheoryProblem 5ProblemSolution
  • 6TheoryProblem 6Problem

2016

Russia

Stage X
Theory5 problems
  • 1TheoryProblem 1ProblemSolution
  • 2TheoryProblem 2Problem
  • 3TheoryProblem 3Problem
    More materialsPart 2Part 3
  • 4TheoryProblem 4Problem
  • 5TheoryProblem 5Problem
Stage Y
Theory6 problems
  • 1TheoryProblem 1Problem
  • 2TheoryProblem 2ProblemSolution
  • 3TheoryProblem 3Problem
  • 4TheoryProblem 4Problem
  • 5TheoryProblem 5Problem
    More materialsPart 2
  • 6TheoryProblem 6Problem
    More materialsPart 2

2014

Russia

Stage Y
Theory10 problems
  • 1Problem 1Problem
  • 2Problem 2Problem
  • 3Problem 3Problem
  • 4Problem 4Problem
  • 5Problem 5Problem
  • 6Problem 6Problem
  • 7Problem 7Problem
    More materialsPart 2Part 3
  • 8Problem 8Problem
  • 9Problem 9Problem
  • 10Problem 10Problem
    More materialsPart 2

2013

Russia

Stage Y
Theory9 problems
  • 1Problem 1Problem
  • 2Problem 2Problem
  • 3Problem 3Problem
  • 4Problem 4Problem
  • 5Problem 5Problem
  • 6Problem 6ProblemSolution
  • 7Problem 7Problem
  • 8Problem 8Problem
  • 9Problem 9Problem
    More materialsPart 2

2012

Russia

Stage Y
Theory3 problems
  • 1Problem 1Problem
  • 2Problem 2Problem
  • 3Problem 3Problem