In a simple pendulum with no friction, a pendulum bob swings along the circular arc indicated in the figure below mechanical energy is conserved. As the pendulum swings from point A to point B, what is the energy at point B? Labeling goes from A to E, left to right. A. all gravitational potential energy B. gravitational potential energy = kinetic energy C. all kinetic energy D. 3/4 gravitational potential energy = 1/4 kinetic energy 3. Energy, in a closed, isolated system, is always changed from one form to another with a net loss or gain. A. True B. False

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Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.