Which instrument measures wind speed?

Which instrument measures wind speed?

• A. Rain gauge
• B. Anemometer
• C. Barometer
• D. Thermometer

Answer: (B)

Wind speed is measured with an anemometer. Anemometers use cups or a small rotor that catch the moving air and spin faster as the wind blows harder. The device converts that spinning into a wind-speed reading, usually in meters per second or miles per hour. This is different from the other tools: a rain gauge collects and measures precipitation, a barometer gauges atmospheric pressure, and a thermometer measures temperature. In weather setups you might also see wind speed read together with wind direction from a wind vane, but the speed itself comes from the anemometer.

Wind speed is measured with an anemometer. Anemometers use cups or a small rotor that catch the moving air and spin faster as the wind blows harder. The device converts that spinning into a wind-speed reading, usually in meters per second or miles per hour. This is different from the other tools: a rain gauge collects and measures precipitation, a barometer gauges atmospheric pressure, and a thermometer measures temperature. In weather setups you might also see wind speed read together with wind direction from a wind vane, but the speed itself comes from the anemometer.