Every year the American Association of Physics Teachers (AAPT) holds a photo contest for high school students around the globe. The competition offers students and their teachers an opportunity to learn and explore the physics in natural, everyday situations and in staged or contrived situations set up to illustrate specific concepts. More than 1000 photos and accompanying captions were submitted this year. A committee of high school teachers winnowed the field down to the top 100 entries—50 natural and 50 contrived. They were displayed at the 2012 AAPT summer meeting and the winners chosen by popular vote.

Zixuan Zhang, in Matt Zeitz’s class at Helias Catholic High School in Jefferson City, Missouri, won the contrived category with this photo and caption:

To submit candidate images for Back Scatter, visit http://contact.physicstoday.org.

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