This image presents a log tossed into a body of water. The moment the log was exerted across the water, it began to accelerate and build up velocity. At the moment of impact, the log split the water's surface tension displacing the water around the log. At that exact moment, the log that sank displaces enough water so that it is equal to the log's volume. The displaced water formed a picturesque wall surrounding the log as seen in the photo. The log then sank under the water and the water returned o its starting position due to gravity. According to the Archimedes principle, the force of buoyancy that acts on a body immersed in fluid is equal to the weight of the fluid than the body displaces. This image altogether demonstrates projectile motion, (the log being tossed into the water), displacement and buoyancy due to density levels.

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Nathaniel Andrade, Amir Haniff
Emery Collegiate Institute, North York, ON
First Prize ( 2014 High School Individual Category )

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