/
Atmospheric Pressure and Meteorology
Save to my account
Sign up
Atmospheric Pressure and Meteorology
Atmospheric Pressure and Meteorology
Study
1
Question
How is atmospheric pressure defined in meteorological terms?
Page 1
Answer
The force exerted by atmospheric gases against the Earth's surface.
2
Question
What are two instruments commonly used to measure atmospheric pressure?
Page 1
Answer
A mercury barometer and an aneroid barometer.
3
Question
What is the standard unit used to measure atmospheric pressure?
Page 1
Answer
Millibars (mb).
4
Question
How does altitude affect atmospheric pressure?
Page 1
Answer
Pressure decreases as altitude increases.
5
Question
What causes higher pressure at ground level compared to high altitudes?
Page 1
Answer
A taller, heavier column of air pressing down.
6
Question
How does temperature increase affect air pressure?
Page 2
Answer
Temperature increase causes a pressure decrease.
7
Question
What is the relationship between cooling air and pressure?
Page 2
Answer
Temperature decrease causes a pressure increase.
8
Question
What happens to air that sinks in the atmosphere?
Page 2
Answer
Sinking air becomes compressed and heats up, causing a pressure increase.
9
Question
What is the thermal effect of rising air on the atmosphere?
Page 2
Answer
Rising air expands and loses heat, resulting in a pressure and temperature decrease.
10
Question
How does the Earth's rotation influence air masses?
Page 2
Answer
It pushes air masses from the poles toward the equator.
11
Question
What happens to air pressure at the poles due to Earth's rotation?
Page 2
Answer
It decreases because air spreads out to occupy a wider area.
12
Question
What occurs to air as it moves toward the poles from the equator?
Page 3
Answer
It contracts, causing an increase in pressure.
13
Question
What is the Doldrum Low Pressure zone?
Page 3
Answer
A low-pressure area at the equator created by high equatorial temperatures.
14
Question
What characterizes the Sub Polar Low Pressure belts?
Page 3
Answer
Low pressure belts along 60°N and 60°S caused by air expanding after leaving the poles.
15
Question
What is the Horse Latitude High Pressure zone?
Page 3
Answer
A high-pressure zone along 30°N and 30°S created by rising equatorial air moving poleward and contracting.
16
Question
How does a mercury barometer measure pressure?
Page 4
Answer
Changes in air pressure push mercury up or pull it down in a glass tube.
17
Question
What is the reading of a mercury barometer at sea level?
Page 4
Answer
760 mmHg.
18
Question
How does an aneroid barometer function?
Page 4
Answer
Changes in pressure cause a metal box to expand or contract, moving a pointer.
19
Question
What units are typically used for aneroid barometer readings?
Page 4
Answer
kg/cm³.
20
Question
What creates the high-pressure zone at the poles?
Page 3
Answer
Low polar temperatures cause air to contract.
21
Question
What is the Horse Latitude zone also referred to as?
Page 3
Answer
Tropical High Pressure.
22
Question
What is the primary function of the air column in the atmosphere?
Page 1
Answer
It provides weight and outward force at ground level.
23
Question
What occurs to air molecules at higher altitudes?
Page 1
Answer
They spread more freely and distribute weight over a larger area.
24
Question
What do cold gas molecules typically do?
Page 2
Answer
Move slowly.
25
Question
What do hot gas molecules typically do?
Page 2
Answer
Move rapidly.
26
Question
What determines if air is classified as a low-pressure area?
Page 2
Answer
Air expands and distributes pressure over a wider area.
27
Question
Why does air contract when cooling?
Page 2
Answer
Temperature decrease reduces molecular energy, causing occupancy of less space.
28
Question
What pressure-temperature relationship is derived from sinking air?
Page 2
Answer
Pressure increase equals temperature increase.
29
Question
What pressure-temperature relationship is derived from rising air?
Page 2
Answer
Pressure decrease equals temperature decrease.
30
Question
What defines the Sub Polar Low Pressure zone region?
Page 3
Answer
Low pressure belts at 60°N and 60°S.