Bernoulli's equation is obtained by applying the law of conservation of ________________?
Correct answer: B. Energy
- A. Mass
- B. Energy
- C. Momentum
- D. Fluid
Explanation
Bernoulli's equation follows from conservation of mechanical energy for steady, incompressible, non-viscous flow: pressure energy, kinetic energy and gravitational potential energy per unit volume remain balanced. Students may choose momentum because fluid motion is involved, but Bernoulli's equation is specifically an energy relation.
Last updated
About Bernoulli's Equation
Bernoulli’s equation applies conservation of energy to steady flow of an incompressible, non-viscous fluid along a streamline: pressure, kinetic and gravitational terms have a constant total. It explains pressure-speed changes in narrow pipes, Venturi meters and lift, and differs from continuity because it relates pressure as well as velocity and height.
Practise Fluid Dynamics
363 free Fluid Dynamics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physics questions like this
Physics is on 15 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A chimney works best if air exposed to the chimney is______________?
A larger water tank open at the top has small hole in the bottom when the water level is 30m above the bottom of the tank the speed of the water leaking from the hole is:
A spinning cricket ball swings in flight because
A Venturi meter measures the rate of flow of a fluid by using
According to Bernoulli's principle, where the speed of a fluid is high, its pressure is