Which term indicates the speed or swiftness of a fluid moving from one location to another?

• A. Flow
• B. Velocity
• C. Acceleration
• D. Pressure

Answer: (B)

The main idea here is identifying the quantity that describes how fast a fluid moves from one location to another. That description is velocity. Velocity is a vector quantity, meaning it covers both speed (how quick) and the direction of motion. In fluid problems, you’re often concerned with how fast particles are traveling at a point, which is the speed—the magnitude of the velocity—while velocity itself also tells you the direction. The other terms don’t capture this combination: flow refers to the overall movement of the fluid or the rate at which fluid passes a point, acceleration is how quickly that velocity changes over time, and pressure is the force exerted per unit area. So velocity is the term that best conveys the speed or swiftness of the fluid moving from one place to another.