WoPhO Problems and Solutions

Files collected from WoPhO Website and the deepest parts of the Internet.
The last three questions from 2011 and 2012 are from the final round of WoPhO, all the other problems are from the selection rounds. In 2013, the last year of the competition, only the selection round occurred.

Other resources: APhO, EuPhO, IPhO, NBPhO, RMPh

2013

Physics Cup

Induction Motor

Problem Solution

Two-Ball Body

Problem Solution

Particles in the Magnetosphere

Problem Solution

Atmospheric Evaporation by Jeans Escape

Problem Solution

Motion in the Electrostatic Field of a Dipole

Problem Solution

Dodecahedron Capacitance

Problem Solution

Ring on Rails

Problem Solution

Gas Bubble in Water

Problem Solution

High-effciency LED

Problem Solution

Magnetic levitation

Problem Solution

2012

Indonesia

Electrostatic Balloon

Loaded Hoop on a Conveyor Belt

The Bohr's Molecule

Heat Capacity of Moist Porous Solid

Rainbow

Problem Solution

Tsunami

Falling Ball Magnet

Problem Solution

Relativistic Images

Problem Solution

Pouring Water into a Tube

Tides

Problem Solution

Magnetic Monopole

Problem Solution

Oil and Gas

Problem Solution

Tornado

Problem Solution

2011

Indonesia

Two Objects Collisions

Spring and Mass Problem

Sliding Block

Dielectric Slab Waveguide

Liquid Air

Lagrange Points Stability

Helical Rope

Magnetic Dipole Oscillation

Cylinder Collision

Charged Discs

Rolling Rod

Problem Solution

Maglev Trains Levitation

Problem Solution

Mirage

Problem Solution