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Flashcards on Atmospheric Pressure
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What is atmospheric pressure?
The force exerted by the weight of the air in the Earth's atmosphere.
What is the unit of measurement for atmospheric pressure?
Pascal (Pa)
What instrument is used to measure atmospheric pressure?
Barometer
What happens to atmospheric pressure as altitude increases?
It decreases
What is the average atmospheric pressure at sea level?
101.325 kPa
What is the pressure of the Earth's atmosphere called?
Atmospheric pressure
What causes atmospheric pressure?
The gravitational pull of the Earth on the air molecules
What are the two main factors that affect atmospheric pressure?
Temperature and altitude
What are the three types of barometers?
Mercury barometer, Aneroid barometer, and Digital barometer
What is the formula to convert atmospheric pressure from kilopascals (kPa) to millimeters of mercury (mmHg)?
mmHg = kPa x 7.50062
What is the relationship between atmospheric pressure and weather?
High atmospheric pressure is associated with fair weather, while low atmospheric pressure is associated with unsettled weather.
What is a common unit of measurement for atmospheric pressure in weather reports?
Millibar (mb)
What is the approximate atmospheric pressure on Mount Everest?
About one-third of the atmospheric pressure at sea level
What is the relationship between atmospheric pressure and boiling point of liquids?
As atmospheric pressure decreases, the boiling point of liquids also decreases.
What is the name of the phenomenon where atmospheric pressure decreases as altitude increases?
Atmospheric pressure gradient
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Test Your Knowledge
Atmospheric pressure is the force exerted by:
Gravity
Wind
Temperature
The weight of the air
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What is the unit of measurement for atmospheric pressure?
Kilogram
Newton
Watt
Pascal
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Which instrument is used to measure atmospheric pressure?
Thermometer
Hydrometer
Anemometer
Barometer
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What happens to atmospheric pressure as altitude increases?
It remains the same
It decreases
It increases
It decreases
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The average atmospheric pressure at sea level is approximately:
50 kPa
100 kPa
150 kPa
101.325 kPa
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What are the two main factors that affect atmospheric pressure?
Pressure and humidity
Altitude and temperature
Wind speed and direction
Temperature and altitude
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What is the name of the instrument used to measure atmospheric pressure?
Thermometer
Hydrometer
Anemometer
Barometer
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What is the formula to convert atmospheric pressure from kilopascals (kPa) to millimeters of mercury (mmHg)?
mmHg = kPa x 10
mmHg = kPa x 5
mmHg = kPa x 2
mmHg = kPa x 7.50062
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What is the relationship between atmospheric pressure and weather?
High atmospheric pressure is associated with rainy weather.
Low atmospheric pressure is associated with fair weather.
High atmospheric pressure is associated with windy weather.
High atmospheric pressure is associated with fair weather.
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What is the common unit of measurement for atmospheric pressure in weather reports?
Pascal (Pa)
Bar (bar)
Pound per square inch (psi)
Millibar (mb)
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