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Complete the analogy: Thermometer : Temperature :: Barometer : ?
Pressure
Humidity
Wind
Height
Pressure
Identify the primary function of the instrument; a thermometer measures temperature, and a barometer measures atmospheric pressure.
Identify the primary function of the instrument; a thermometer measures temperature, and a barometer measures atmospheric pressure.
Analyze the first pair relationship
A Thermometer is a scientific instrument designed to measure temperature. The relationship is Instrument : Physical Quantity measured by it.
Apply the relationship to the second pair
A Barometer is a scientific instrument designed to measure atmospheric pressure. Therefore, the word that completes the analogy must be the physical quantity measured by a barometer, which is Pressure.
B: Humidity is measured by a hygrometer, not a barometer. C: Wind speed/direction is measured by an anemometer or wind vane. D: Height/Altitude is measured by an altimeter.
A is correct because the analogy follows the 'Instrument : Measured Quantity' pattern, and a barometer is the standard instrument used to measure atmospheric pressure.
In analogy questions involving science, always verify if the relationship is 'Instrument to Function' or 'Unit to Measurement', as distractors often list instruments that measure different physical quantities.