Exam 8: Air Pressure and Winds

The pressure announced on last night's television weather broadcast was 100.6. Explain how this was measured and give the units. Is this considered an unusually high- or low-pressure value?

(Short Answer)

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Question 61

Explain briefly why upper-level winds at middle latitudes in the northern hemisphere blow from west to east. In what direction do upper-level winds at middle latitudes in the southern hemisphere blow?

(Essay)

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Question 62

Which of the following would happen to the atmospheric pressure at the ground if the Earth's gravitational force were to increase?

(Multiple Choice)

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Question 63

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Suppose the wind is blowing from the south directly above you at 3000 metres. Which of the following gives the direction at 3000 metres of the centre of lowest pressure?

(Multiple Choice)

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Question 64

In which of the following places is the pressure gradient force directed from high to low pressure?

(Multiple Choice)

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Question 65

Equilibrium between which of the following factors is described by the hydrostatic equation?

(Multiple Choice)

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Question 66

-Which of the following is the source of the expression "the force exerted on an object equals its mass times the acceleration produced"?

(Multiple Choice)

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Question 67

Compare two air parcels at sea level that have the same size but different temperatures. Which of the following describes the colder parcel of air?

(Multiple Choice)

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Question 68

-The pressure gradient force would cause the stationary parcel of air to begin to move in which of the following directions?

(Multiple Choice)

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Question 69

-In which side is there more air between 0 and 1.5 km altitude?

(Multiple Choice)

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Question 70

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Which of the following describes what contour lines represent on a 500 hPa chart?

(Multiple Choice)

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Question 71

Suppose at your home in the northern hemisphere the surface wind is blowing from the northwest. Which of the following directions relative to your home will have the region of lowest pressure?

(Multiple Choice)

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Question 72

A station at an altitude of 900 metres above sea level measures an air pressure of 930 hPa. Under normal conditions, which of the following values give the most realistic sea-level pressure for this station?

(Multiple Choice)

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Question 73

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Which of the following describes the temperature of the air at point A compared to the air at point B?

(Multiple Choice)

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Question 74

Suppose you stand outside and feel a fresh breeze blowing against your face. Could this be a geostrophic wind? Explain.

(Short Answer)

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Question 75

Which of the following factors produces the strongest Coriolis force?

(Multiple Choice)

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Question 76

Which of the following describes why surface winds blow across the isobars at an angle?

(Multiple Choice)

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Question 77

Which of the following statements applies to the Coriolis force?

(Multiple Choice)

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Question 78

Consider a surface low pressure area that moves from south to north directly east of your home in the northern hemisphere. Which of the following describes the resulting shift in wind direction?

(Multiple Choice)

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Question 79

If the outside air temperature is 27°C and the air density is 1.2 kg/m3, which of the following is the outside air pressure?

(Multiple Choice)

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Question 80

Showing 61 - 80 of 121

The pressure announced on last night's television weather broadcast was 100.6. Explain how this was measured and give the units. Is this considered an unusually high- or low-pressure value?

Explain briefly why upper-level winds at middle latitudes in the northern hemisphere blow from west to east. In what direction do upper-level winds at middle latitudes in the southern hemisphere blow?

Which of the following would happen to the atmospheric pressure at the ground if the Earth's gravitational force were to increase?

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Suppose the wind is blowing from the south directly above you at 3000 metres. Which of the following gives the direction at 3000 metres of the centre of lowest pressure?

In which of the following places is the pressure gradient force directed from high to low pressure?

Equilibrium between which of the following factors is described by the hydrostatic equation?

-Which of the following is the source of the expression "the force exerted on an object equals its mass times the acceleration produced"?

Compare two air parcels at sea level that have the same size but different temperatures. Which of the following describes the colder parcel of air?

-The pressure gradient force would cause the stationary parcel of air to begin to move in which of the following directions?

-In which side is there more air between 0 and 1.5 km altitude?

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Which of the following describes what contour lines represent on a 500 hPa chart?

Suppose at your home in the northern hemisphere the surface wind is blowing from the northwest. Which of the following directions relative to your home will have the region of lowest pressure?

A station at an altitude of 900 metres above sea level measures an air pressure of 930 hPa. Under normal conditions, which of the following values give the most realistic sea-level pressure for this station?

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Which of the following describes the temperature of the air at point A compared to the air at point B?

Suppose you stand outside and feel a fresh breeze blowing against your face. Could this be a geostrophic wind? Explain.

Which of the following factors produces the strongest Coriolis force?

Which of the following describes why surface winds blow across the isobars at an angle?

Which of the following statements applies to the Coriolis force?

Consider a surface low pressure area that moves from south to north directly east of your home in the northern hemisphere. Which of the following describes the resulting shift in wind direction?

If the outside air temperature is 27°C and the air density is 1.2 kg/m3, which of the following is the outside air pressure?

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters

Exam 8: Air Pressure and Winds

The pressure announced on last night's television weather broadcast was 100.6. Explain how this was measured and give the units. Is this considered an unusually high- or low-pressure value?

Explain briefly why upper-level winds at middle latitudes in the northern hemisphere blow from west to east. In what direction do upper-level winds at middle latitudes in the southern hemisphere blow?

Which of the following would happen to the atmospheric pressure at the ground if the Earth's gravitational force were to increase?

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. ​ ​ -Suppose the wind is blowing from the south directly above you at 3000 metres. Which of the following gives the direction at 3000 metres of the centre of lowest pressure?

In which of the following places is the pressure gradient force directed from high to low pressure?

Equilibrium between which of the following factors is described by the hydrostatic equation?

​ -Which of the following is the source of the expression "the force exerted on an object equals its mass times the acceleration produced"?

Compare two air parcels at sea level that have the same size but different temperatures. Which of the following describes the colder parcel of air?

​ -The pressure gradient force would cause the stationary parcel of air to begin to move in which of the following directions?

​ -In which side is there more air between 0 and 1.5 km altitude?

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. ​ ​ -Which of the following describes what contour lines represent on a 500 hPa chart?

Suppose at your home in the northern hemisphere the surface wind is blowing from the northwest. Which of the following directions relative to your home will have the region of lowest pressure?

A station at an altitude of 900 metres above sea level measures an air pressure of 930 hPa. Under normal conditions, which of the following values give the most realistic sea-level pressure for this station?

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. ​ ​ -Which of the following describes the temperature of the air at point A compared to the air at point B?

Suppose you stand outside and feel a fresh breeze blowing against your face. Could this be a geostrophic wind? Explain.

Which of the following factors produces the strongest Coriolis force?

Which of the following describes why surface winds blow across the isobars at an angle?

Which of the following statements applies to the Coriolis force?

Consider a surface low pressure area that moves from south to north directly east of your home in the northern hemisphere. Which of the following describes the resulting shift in wind direction?

If the outside air temperature is 27°C and the air density is 1.2 kg/m3, which of the following is the outside air pressure?

Earth and Its Atmosphere

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Suppose the wind is blowing from the south directly above you at 3000 metres. Which of the following gives the direction at 3000 metres of the centre of lowest pressure?

-Which of the following is the source of the expression "the force exerted on an object equals its mass times the acceleration produced"?

-The pressure gradient force would cause the stationary parcel of air to begin to move in which of the following directions?

-In which side is there more air between 0 and 1.5 km altitude?

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Which of the following describes what contour lines represent on a 500 hPa chart?

The solid line indicates the 850 mb pressure level, and points A and B are at the same altitude. -Which of the following describes the temperature of the air at point A compared to the air at point B?