In Bernoulli's equation, the term 1/2 v2 is called:
Correct answer: A. K.E. per unit volume
- A. K.E. per unit volume
- B. K.E.
- C. K.E. per unit area
- D. K.E. per unit length
Explanation
Bernoulli's equation formula is a relation between the pressure, kinetic energy, and gravitational potential energy of a fluid in a container. The formula for Bernoulli's principle is given as follows: p+1/2ρv2+ρgh=constant Where p is the pressure exerted by the fluid, v is the velocity of the fluid, ρ is the density of the fluid, and h is the height of the container. Here 1/2 v2 represents K.E. per unit volume.
This question appeared on the UHS MDCAT 2016 paper, which you can sit online with every answer explained.
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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.
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