Which current study method measures the current as it flows past a fixed object?

• A. Flow Method
• B. Float Method
• C. Gyre
• D. Gulf Stream

Answer: (A)

Measuring current by a fixed object relies on a stationary sensor placed in the water that records how fast the water moves past it. A flow meter or current meter sits in the current and directly measures velocity as the water flows by, giving the current at that location. In contrast, a float method tracks a drifting object to estimate surface current, and large-scale features like gyres or the Gulf Stream describe patterns of movement rather than a measurement technique. So, measuring the current as it flows past a fixed object is the Flow Method.