https://www.khanacademy.org/science/ap-college-physics-1/xf557a762645cccc5:fluids/xf557a762645cccc5:fluid-flow/v/fluid-flow 2025-04-01T12:37:05.24852406Z Fluid flow A difference in pressure between two locations causes a fluid to flow. Pressure differences can be created in various ways, such as removing air from one region (e.g., drinking through a straw) or maintaining a height of fluid (e.g., water towers). For an incompressible fluid, the rate at which matter enters a fluid-filled tube open at both ends must equal the rate at which fluid exits the tube. This conservation of mass is described by the continuity equation (A1v1 = A2v2). Mahesh Shenoy video https://cdn.kastatic.org/ka_thumbnails_cache/4717de46-52f8-4be8-ba2c-a8f0be959666_1280_720_base.png Fluid flow A difference in pressure between two locations causes a fluid to flow. Pressure differences can be created in various ways, such as removing air from one region (e.g., drinking through a straw) or maintaining a height of fluid (e.g., water towers). For an incompressible fluid, the rate at which matter enters a fluid-filled tube open at both ends must equal the rate at which fluid exits the tube. This conservation of mass is described by the continuity equation (A1v1 = A2v2). https://cdn.kastatic.org/ka-youtube-converted/ZBvQfi3P0l4.mp4/ZBvQfi3P0l4.mp4 622 Types of fluid flow and continuity equation https://www.khanacademy.org/science/ap-college-physics-1/xf557a762645cccc5:fluids/xf557a762645cccc5:fluid-flow/a/what-is-volume-flow-rate 2025-03-22T01:18:09.899963568Z The continuity equation Learn how to represent the volume flow rate of a fluid. Explore how the incompressibility of liquids leads to the continuity equation. article https://www.khanacademy.org/science/in-in-class11th-physics/in-in-class11th-physics-fluids/in-in-fluid-dynamics/v/fluids-part-7 2022-11-16T04:22:43.7414897Z Volume flow rate and equation of continuity A fluid’s motion is affected by its speed, density, and viscosity, and weight, as wells as drag and lift. Use an example of a pipe with different sized openings on either end to observe and quantify laminar flow of liquids. Learn about the concept of flux, and how it is used to calculate the power of a system with moving fluid. Sal Khan video https://cdn.kastatic.org/googleusercontent/HdmNC540d2LoYhMZzHwYkHgAuIf1RArccRuWi1jcQA3sYLQYlrM1ikDtZszZj9iYzV7pz6kJ2kXNEWsI-bRhwv65 Volume flow rate and equation of continuity A fluid’s motion is affected by its speed, density, and viscosity, and weight, as wells as drag and lift. Use an example of a pipe with different sized openings on either end to observe and quantify laminar flow of liquids. Learn about the concept of flux, and how it is used to calculate the power of a system with moving fluid. https://cdn.kastatic.org/ka-youtube-converted/G4CgOF4ccXk.mp4/G4CgOF4ccXk.mp4 599 Types of fluid flow and continuity equation https://www.khanacademy.org/science/in-in-class11th-physics/in-in-class11th-physics-fluids/in-in-fluid-dynamics/e/continuity-equation 2026-04-07T23:36:17.218592739Z Continuity equation Let's practice some problems to better understand how to apply the continuity equation in various situations of flow of incompressible liquids. Satra exercise