Podcast
Questions and Answers
What happens to atmospheric pressure as altitude increases?
What happens to atmospheric pressure as altitude increases?
- It increases due to the weight of the atmosphere.
- It fluctuates randomly with no specific trend.
- It decreases due to lower air density. (correct)
- It remains constant regardless of altitude.
Which unit is commonly used to express atmospheric pressure in the SI system?
Which unit is commonly used to express atmospheric pressure in the SI system?
- Millibars
- Pounds per square inch
- Inches of mercury
- Pascals (correct)
How does a mercury barometer indicate changes in atmospheric pressure?
How does a mercury barometer indicate changes in atmospheric pressure?
- By generating sound waves that indicate pressure.
- By changing the color of the mercury.
- By raising or lowering the mercury level in the tube. (correct)
- By capturing air molecules and measuring their movement.
At sea level, what is the standard measurement of atmospheric pressure in pascals?
At sea level, what is the standard measurement of atmospheric pressure in pascals?
What component of the atmosphere exerts pressure downwards at sea level?
What component of the atmosphere exerts pressure downwards at sea level?
What is the historical significance of the mercury barometer?
What is the historical significance of the mercury barometer?
Which of the following is NOT a unit used to measure atmospheric pressure?
Which of the following is NOT a unit used to measure atmospheric pressure?
Why is atmospheric pressure greatest at sea level?
Why is atmospheric pressure greatest at sea level?
Which atmospheric pressure unit is commonly used by weather forecasters?
Which atmospheric pressure unit is commonly used by weather forecasters?
Flashcards
Atmospheric pressure
Atmospheric pressure
The force exerted by the weight of the air above us.
Why does pressure decrease with altitude?
Why does pressure decrease with altitude?
The pressure of the atmosphere decreases as altitude increases. This is because the air becomes less dense at higher altitudes.
What is a barometer?
What is a barometer?
A barometer is an instrument used to measure atmospheric pressure.
How does a barometer work?
How does a barometer work?
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What causes different weather systems?
What causes different weather systems?
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What is atmospheric pressure?
What is atmospheric pressure?
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Why does atmospheric pressure decrease with altitude?
Why does atmospheric pressure decrease with altitude?
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How does atmospheric pressure relate to weather?
How does atmospheric pressure relate to weather?
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