UNIT 05: FLUID DYNAMICS

Fluid Dynamics is a scoring chapter within MDCAT Physics, contributing to the 36-question, 20% Physics share of your MDCAT paper.

What this chapter covers:

• Terminal velocity
• Fluid drag
• Steady (streamline or laminar) flow, incompressible flow and non-viscous flow as applied to the motion of an ideal fluid
• Transition of viscous fluid flow from laminar to turbulence at sufficiently high velocity
• Predominance of turbulent over laminar conditions in practical fluid flow and resistance to motion
• Equation of continuity (Av = constant) and its use in solving problems
• The equation of continuity as a form of the principle of conservation of mass
• Bernoulli’s equation for a horizontal tube of flow
• Pressure difference arising from different rates of fluid flow (Bernoulli’s effect)
• Bernoulli’s effect in blood physics

This chapter blends conceptual definitions with derivation-based and numerical problem-solving, so it sits across the moderate range of the PMDC’s 15% easy, 70% moderate, 15% difficult split, with a few genuinely difficult derivation and application-based questions mixed in. Mastery requires holding several closely related flow definitions apart clearly while also staying comfortable applying formulas like Stokes’ law, the Reynolds number, and Bernoulli’s equation to numerical problems.

Why this practice set helps:

• Covers every subtopic the PMDC curriculum identifies, plus the supporting concepts textbooks present alongside them
• Every question includes a full explanation of why the correct answer is right and why each other option is wrong
• Built to help you learn faster than passive reading, with nothing the exam may draw from left untouched

Work through this set attentively, and you build both the terminology precision and calculation speed this chapter demands.