Question

The study of fluid at rest is

• A. ( \text{Fluid Dynamics} ) \
• B. ( \text{Fluid Mechanics} ) \
• C. ( \text{Fluid Statics} ) \
• D. ( \text{Fluid Kinematics} ) \

Hint:

Remember the distinction: 'statics' implies no motion (at rest), while 'dynamics' implies motion and the forces causing it. 'Kinematics' is about motion itself, without considering the forces. This applies to both solid mechanics and fluid mechanics.

Answer 1

The Correct Option is C

Fluid Mechanics is a broad branch of physics that studies fluids (liquids, gases, and plasmas) and the forces on them. Fluid Mechanics is further divided into:

• Fluid Statics: The study of fluids at rest. It deals with the conditions under which fluids are at rest in stable equilibrium. Key concepts include pressure, buoyancy, and Pascal's principle.
• Fluid Dynamics: The study of fluids in motion. It deals with the forces acting on fluids and their effects on fluid flow.
• Fluid Kinematics: A sub-branch of fluid dynamics that describes the motion of fluids without considering the forces causing the motion.

Given the question asks for the study of fluid at rest, the correct answer is Fluid Statics.