An instrument used to measure atmospheric pressure is

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Study for the Earth Science Standards of Learning Test. Use flashcards and multiple choice questions, with hints and explanations for each question. Prepare for your exam efficiently!

Multiple Choice

An instrument used to measure atmospheric pressure is

Explanation:
Measuring atmospheric pressure is done with a barometer. It responds directly to the weight of the air above us. In a mercury barometer, air pushing down on mercury raises or lowers the column; higher pressure pushes the mercury higher, and lower pressure lets it fall. This gives a reading in units like millibars or kilopascals. There is also an aneroid barometer, which uses a sealed chamber and a spring to sense pressure changes and translate them into a reading. The other instruments measure different things: a hygrometer senses humidity, an anemometer measures wind speed, and a thermometer measures temperature.

Measuring atmospheric pressure is done with a barometer. It responds directly to the weight of the air above us. In a mercury barometer, air pushing down on mercury raises or lowers the column; higher pressure pushes the mercury higher, and lower pressure lets it fall. This gives a reading in units like millibars or kilopascals. There is also an aneroid barometer, which uses a sealed chamber and a spring to sense pressure changes and translate them into a reading. The other instruments measure different things: a hygrometer senses humidity, an anemometer measures wind speed, and a thermometer measures temperature.

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