The United States Association for Young Physicists Tournaments
(USAYPT)
promotes better physics teaching and learning
by teaching high school physics teachers to do research
with their students in their schools

The USAYPT holds the
US Invitational Young Physicists Tournament
for US high school teams and invited foreign teams
each February

The Physics Teacher
Article about the 2007
USAYPT February Tournaments

Here are the 2009 Problems