Abstract
We describe a study on the conceptual difficulties faced by college students
in understanding hydrodynamics of ideal fluids. This study was based on
responses obtained in hundreds of written exams and oral interviews, which were
held with first-year Engineering and Science university students. Their
responses allowed us to identify a series of misconceptions unreported in the
literature so far. The study findings demonstrate that the most important
difficulties arise from the students' inability to establish a link between the
kinematics and dynamics of moving fluids, and from a lack of understanding
regarding how different regions of a system interact.
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