Fluids in Motion (Hydrodynamics) — A/L Physics

How do I practise Fluids in Motion (Hydrodynamics)?

1 question with a worked solution

1. According to Bernoulli's principle for the streamline flow of an incompressible, non-viscous fluid, which physical quantity remains constant along a streamline?
   1. A) P + ½ ρ v² + ρ g h (Total mechanical energy per unit volume)
   2. B) P / v + ρ g h
   3. C) ½ ρ v² - P
   4. D) P · v · A
   Check my answer

   Correct answer: A) P + ½ ρ v² + ρ g h (Total mechanical energy per unit volume)

   Bernoulli's equation states that for an ideal fluid in steady streamline flow, the sum of pressure energy per unit volume (P), kinetic energy per unit volume (½ ρ v²), and gravitational potential energy per unit volume (ρ g h) is constant along any streamline.

   Show worked solution

   Step 1: Recall Bernoulli's formulation: Conservation of mechanical energy for flowing fluids. Step 2: P + ½ ρ v² + ρ g h = constant along a streamline. Answer: P + ½ ρ v² + ρ g h (Total mechanical energy per unit volume).
   Modelled on: the A/L Physics examination pattern

Get this auto-marked

Next in the syllabus

Where does Fluids in Motion (Hydrodynamics) fit in the syllabus?

Unit 2.8 · Year 1 · Term 1