USAPhO Problems and Solutions

The complete collection of past United States of America Physics Olympiad (USAPhO) problems with the official solutions.

If you’re interested in 1-1 Physics Olympiad Coaching with me (for any level), see my tutoring page.

International: IPhO, APhO, EuPhO

UK: Intermediate Physics Challenge Y11, Senior Physics Challenge Y12, Physics Challenge Y13, BPhO Round 1, BPhO Round 2

USA: F=ma Exam, USAPhO

2026

USAPhO

📝Problems 💡Solutions

2025

USAPhO

📝Problems 💡Solutions

2024

USAPhO

📝Problems 💡Solutions

2023

USAPhO

📝Problems 💡Solutions

2022

USAPhO

📝Problems 💡Solutions

USA Training Camp

📝Problems 💡Solutions

2021

USAPhO

📝Problems 💡Solutions

USAPhO Plus

📝Problems 💡Solutions

2020

USAPhO

📝Problems 💡Solutions

2019

USAPhO

📝Problems 💡Solutions

2018

USAPhO

📝Problems 💡Solutions

2017

USAPhO

📝Problems 💡Solutions

2016

USAPhO

📝Problems 💡Solutions

2015

USAPhO

📝Problems 💡Solutions

2014

USAPhO

📝Problems 💡Solutions

2013

USAPhO

📝Problems 💡Solutions

2012

USAPhO

📝Problems 💡Solutions

2011

USAPhO

📝Problems 💡Solutions

2010

Semifinal

📝Problems 💡Solutions

2009

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2008

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2007

Semifinal

📝Problems 💡Solutions

2006

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2005

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2004

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2003

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2002

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2001

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2000

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

1999

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

1998

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

1997

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2026

USAPhO

📝Problems 💡Solutions

2025

USAPhO

📝Problems 💡Solutions

2024

USAPhO

📝Problems 💡Solutions

2023

USAPhO

📝Problems 💡Solutions

2022

USAPhO

📝Problems 💡Solutions

USA Training Camp

📝Problems 💡Solutions

2021

USAPhO

📝Problems 💡Solutions

USAPhO Plus

📝Problems 💡Solutions

2020

USAPhO

📝Problems 💡Solutions

2019

USAPhO

📝Problems 💡Solutions

2018

USAPhO

📝Problems 💡Solutions

2017

USAPhO

📝Problems 💡Solutions

2016

USAPhO

📝Problems 💡Solutions

2015

USAPhO

📝Problems 💡Solutions

2014

USAPhO

📝Problems 💡Solutions

2013

USAPhO

📝Problems 💡Solutions

2012

USAPhO

📝Problems 💡Solutions

2011

USAPhO

📝Problems 💡Solutions

2010

Semifinal

📝Problems 💡Solutions

2009

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2008

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2007

Semifinal

📝Problems 💡Solutions

2006

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2005

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2004

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2003

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2002

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2001

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

2000

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

1999

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

1998

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions

1997

Quarterfinal

📝Problems 💡Solutions

Semifinal

📝Problems 💡Solutions