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F=ma / USAPhO

Expert Overview

The United States Physics Olympiad program, administered by the American Association of Physics Teachers, is the nation's premier physics competition pipeline for high school students, selecting five representatives to the International Physics Olympiad through a three-stage process: the F=ma qualifying exam, the invitation-only USAPhO exam, and a ten-day training camp at the University of Maryland. Of the approximately 6,000 students who sit the F=ma each year, five ultimately represent the United States internationally.


Format

Individual

Judging Format

Scoring based

Recognition

Grade Eligibility

Rising Freshmen, Sophomores, Juniors, Seniors

Geographic Eligibility

U.S.

Discipline

EngineeringSTEMPhysicsMechanicsProblem Solving

Entries

~5,800

Percent Awarded

~8%

Important Dates

    Registration Deadline (Extended)

    January 21, 2026

    Exam Date

    February 12, 2026

Registration Cost

    $75

About


The pipeline opens with the F=ma, a 25-question multiple-choice mechanics exam administered each January to US students; a calculator is permitted, but all problems can be solved without calculus. Students scoring at or above the annual cutoff — typically around 400 — are invited to sit the USAPhO, a four-hour free-response exam covering the full introductory physics curriculum including mechanics, electromagnetism, thermodynamics, optics, relativity, and modern physics, with calculus required. USAPhO scorers are recognized with gold, silver, and bronze medals on a distribution modeled on the IPhO itself; approximately the top 10–12% of USAPhO participants earn gold. From the full USAPhO field, the top 20 students are invited to the US Physics Team training camp at the University of Maryland — ten days of university-level lectures, laboratory work, and selection exams. The five students with the strongest combined performance travel to the International Physics Olympiad, held each summer in a rotating host country, where they compete against teams from more than 80 nations.

The credential's weight scales precisely with stage. F=ma qualification signals serious physics preparation; USAPhO qualification — roughly the top 400 students in the country — is a meaningful and recognized marker of exceptional physics ability. A USAPhO gold medal places a student among the top 40 or so young physicists in the United States. US Physics Team membership, and especially IPhO representation, is among the most elite STEM credentials available to any high school student in the world. The 2025 team returned from Paris with five gold medals, a performance that required a White House visit upon the team's return.

The US Physics Team pipeline is the right path for a student with genuine mastery of physics who is prepared to go well beyond the AP curriculum — USAPhO qualification alone is a significant credential, and every stage beyond it represents a progressively smaller and more elite group.


Prizes Offered


      Gold, silver, and bronze medals are awarded to the highest-performing students at each stage of the F=ma exam, USAPhO, and IPhO


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