SIFT Mechanical Comprehension Practice Test 2025 – Comprehensive All-in-One Guide for Exam Success!

When fluid velocity increases, the potential energy associated with the fluid's height does not directly change; however, there is a conversion of energy types involved. In fluid dynamics, as the velocity of a fluid increases due to a decrease in pressure, energy can be transformed from potential energy to kinetic energy. This process follows the principle of conservation of energy, where total energy in a closed system remains constant.

As the fluid moves and accelerates, some of the energy that was originally stored as potential energy (due to its position or elevation) is converted into kinetic energy, which is the energy of motion. Thus, when considering the relationship between fluid velocity and energy forms, we can conclude that increased fluid velocity correlates with an increase in kinetic energy at the expense of potential energy, affirming the idea that potential energy is effectively transformed as the fluid accelerates.