Vector measuring current meter

High school (ages 12+)
Environment & Earth

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Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/vector-measuring-current-meter

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How deep is Vector measuring current meter?5,000 meters
2. What is the scientific name?Vector Measuring Current Meter (VMCM)
3. What is the discoverers?Drs. Robert Weller and Russ Davis
4. How does the VMCM measure the direction of ocean currents?It has two propellers set 90 degrees apart. Each propeller spins faster when water flows across it. By comparing the speeds, the machine calculates the direction of the current.
5. Who invented the VMCM and when?Dr. Robert Weller and Dr. Russ Davis invented the VMCM in the late 1970s. They made it to give scientists more accurate current data.

Cosine Response: A sensor characteristic where output is proportional to the velocity component perpendicular to its axis.
Hydrodynamics: The study of the motion of fluids (like water) and the forces acting on them.
Ocean Circulation: The large-scale movement of waters in the ocean, driven by wind, temperature, and salinity differences.
Benchmark Instrument: An instrument used as a standard to compare the performance of other similar instruments.