The effect of the decrease in pressure with the increase in speed of the fluid in a horizontal tube gives that:
Correct answer: B. Bernoulli effect
- A. Torricelli effect
- B. Bernoulli effect
- C. Venture effect
- D. Doppler's effect
Explanation
This phenomenon is a consequence of Bernoulli's principle, which states that as the speed of a fluid increases, its pressure decreases. In a horizontal tube, when the fluid (such as air or a liquid) speeds up, the kinetic energy of the fluid increases, causing a decrease in pressure according to Bernoulli's principle.
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About Fluid Dynamics
Fluid flow is described through speed, pressure and density, including steady flow and the equation of continuity for conserving mass. Bernoulli's equation relates pressure, speed and height, while fluid drag and terminal velocity explain why a falling object eventually moves at constant speed when drag balances its weight.
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