TOPIC: Newton's Laws of Motion
DESCRIPTION: Water streaming through holes in the bottom of a suspended soda pop can causes the can to rotate.
CONTRIBUTED BY: Tom Clausen, KSC Explorations Station
EDITED BY: Roger Storm, NASA Lewis Research Center
DISCUSSION: The Soda Pop Can Hero Engine is an excellent demonstration of Newton's Laws of Motion. The can rotates because a force is exerted by the flowing water (1 st. Law). The rate of rotation will vary with different numbers of holes and different diameters of holes in the can (2nd. Law). Try two holes and try a can with large holes verses a can with small holes. The can rotates in the opposite direction from the direction of the water streams (3rd. Law).
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