What happens to the displacement of the liquid when the left piston moves downward?
Understand the Problem
The question is assessing the effects of the movement of a piston in a hydraulic system on the displacement of a liquid and how it interacts with another piston. The options provided indicate various hydraulic principles that could apply to this scenario.
Answer
The displacement of liquid is due to increased pressure from the downward movement of the left piston.
When the left piston moves downward, it exerts a force on the liquid, increasing the pressure. This pressure is transmitted undiminished throughout the liquid, causing the liquid to be displaced elsewhere, typically moving the right piston or raising fluid level at other points.
Answer for screen readers
When the left piston moves downward, it exerts a force on the liquid, increasing the pressure. This pressure is transmitted undiminished throughout the liquid, causing the liquid to be displaced elsewhere, typically moving the right piston or raising fluid level at other points.
More Information
This concept is based on Pascal's Principle which states that a change in pressure applied to a confined fluid is transmitted undiminished throughout the fluid.
Tips
A common mistake is thinking the pressure diminishes over distance; however, Pascal's Principle states it remains unchanged.
Sources
- Pascal's Principle | Physics - Lumen Learning - courses.lumenlearning.com
- Pascal's Principle and Hydraulics - grc.nasa.gov
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