EuPhO Problems and Solutions
First held in Tartu in 2017, and deliberately unlike IPhO: problems are set to be solvable in elegant ways rather than long ones. Theory is three problems in five hours, with a separate experimental exam.
All Mechanics Electromagnetism Thermodynamics Waves & Optics Relativity
Newest first Cards List
Kinematics Dynamics Rigid body Fluids Statics Electrostatics Circuits Magnetostatics Induction Heat transfer Gas laws Kinetic theory Phase transitions Statistical mechanics Oscillations Interference Diffraction Geometrical optics
2026
Sweden
4 Experimental Acoustic levitation Problem Solution EuPhO 2026 Experimental problem 4, Acoustic levitation
2025
Bulgaria
1 Sunny not published 2 Floating table not published 3 Crossed wires not published 4 Deep Learning not published 5 Hidden pattern not published
2024
Georgia
1 Sliding puck not published 2 Spaceships not published 3 Fabry–Pérot interferometer not published 4 Experimental Physics of piezoelectricity Problem Solution EuPhO 2024 Experimental problem 4, Physics of piezoelectricity
2023
Germany
1 Thermal lens not published 2 Brick between two planes not published 3 Plate between magnets not published 4 Magnetic Pendulum not published 5 Optical black-box not published
2022
Slovenia
1 Floating cylinder not published 2 Thermal oscillations not published 3 Dipole in a magnetic field not published 4 Experimental Physics of illumination Problem Solution EuPhO 2022 Experimental problem 4, Physics of illumination
Theory 3 problems
1 Theory A leak Problem Solution EuPhO 2021 Theory problem 1, A leak 2 Theory Thread around a cylinder Problem Solution EuPhO 2021 Theory problem 2, Thread around a cylinder 3 Theory Glass ball Problem Solution EuPhO 2021 Theory problem 3, Glass ball 4 Hidden wire not published 5 Hot cylinder not published
Theory 3 problems
1 Theory Solenoid and loop Problem Solution EuPhO 2020 Theory problem 1, Solenoid and loop 2 Theory Mechanical accelerator Problem Solution EuPhO 2020 Theory problem 2, Mechanical accelerator 3 Theory Cat eyes Problem Solution EuPhO 2020 Theory problem 3, Cat eyes 4 Hidden Charge not published 5 Black box not published
2019
Latvia
Theory 3 problems
1 Theory Ice pellets Problem Solution EuPhO 2019 Theory problem 1, Ice pellets 2 Theory Motion of a charged ball Problem Solution EuPhO 2019 Theory problem 2, Motion of a charged ball 3 Theory Water hose Problem Solution EuPhO 2019 Theory problem 3, Water hose Experimental 1 problem Propagation of radio waves Problem 4 Experimental Propagation of radio waves Problem EuPhO 2019 Experimental problem 4, Propagation of radio waves
2018
Russia
4 Experimental Porous membrane Problem Solution EuPhO 2018 Experimental problem 4, Porous membrane
2017
Estonia
Theory 3 problems
1 Theory Oscillating rope Problem Solution EuPhO 2017 Theory problem 1, Oscillating rope 2 Theory Disk in gas Problem Solution EuPhO 2017 Theory problem 2, Disk in gas 3 Theory Superconducting mesh Problem Solution EuPhO 2017 Theory problem 3, Superconducting mesh 4 Experimental Light-emitting diode Problem Solution EuPhO 2017 Experimental problem 4, Light-emitting diode
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