Bernoulli's equation is essentially a statement of
- A. conservation of mass
- B. conservation of momentum
- C. conservation of energy for a flowing fluid
- D. Newton's third law
Explanation
The equation adds pressure energy, kinetic energy and potential energy per unit volume and states that the total is the same all along a streamline for steady, non viscous, incompressible flow. Conservation of mass is expressed separately by the continuity equation. The restriction to non viscous flow is why the equation only approximates real pipes.
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