Part 6- Weather Theory

Question 1

What does the difference in the direct sunlight between the equatorial regions and a polar regions cause

Answer 1

Temperature fluctuations on the earth surface

Question 2

What is the purpose of transporting heat from warmer areas to cooler area is called

Answer 2

Convection

Question 3

What atmospheric gas represents the highest percentage of atmospheric content

Answer 3

Nitrogen

Question 4

What circulation pattern does the polar for and Hadley sells makeup?

Answer 4

Three cell circulation pattern

Question 5

What are the effects of uneven heating and cooling of the earth surface?

Answer 5

Variations of air density creation of circular patterns, and variations in atmospheric pressure

Question 6

What do closely spaced isobars on a weather chart indicate?

Answer 6

A strong pressure gradient

Question 7

What is a trough

Answer 7

An elongated area of low pressure

Question 8

Which of the following is correct regarding the Coriolis force

Answer 8

The coriolis force becomes increasingly apparent closer to the north or south poles

Question 9

Which of the three global wind patterns has the most closely associated with the equator?

Answer 9

North east tradewinds

Question 10

Which conditions cause a warm downslope wind to occur

Answer 10

A warm air mass moves at a high altitude across the mountain range

Question 11

When does the convection process begin

Answer 11

When the warm air from the equilateral regions rises and moves toward the cooler area and the polar regions

Question 12

What type of pressure gradient and winds would you expect in the area where the ice bars on the weather chart or close together?

Answer 12

A strong pressure gradient and strong winds

Question 13

What are the three global wind patterns and what north latitude does each occur?

Answer 13

Northeast tradewinds from the equator to 30° north latitude prevailing western lies from 30 to 60° north latitude and polarize from 60° north to the north pole

Question 14

What are the weather characteristics of a cold front occlusion when the front lifts moist stable air?

Answer 14

The weather is a mixture of the characteristics of both the warm and cold fronts

Question 15

What are the weather characteristics of a stationary front?

Answer 15

Stationary front include a mixture of the weather characteristics of both warm and cold front

Question 16

What type of slope is characteristic of a warm?

Answer 16

Gradual

Question 17

How is an air mass modified when it flows over a warmer surface

Answer 17

It’s lower layers are heated and vertical air movement develops, resulting in instability

Question 18

What is the result of freezing water droplet exposed to strong updrafts?

Answer 18

Hail

Question 19

At what altitude do the base as a vertical development clouds form?

Answer 19

Low to middle

Question 20

….It’s a type of high cloud

Answer 20

Cirrus

Question 21

How does slope fog develop?

Answer 21

When forces moist stable air up a slope in land of mass

Question 22

What conditions cause advection fog?

Answer 22

Wind moving low layer of warm, moist air over a cooler surface

Question 23

Low clouds usually consist almost entirely of

Answer 23

Water droplets

Question 24

What are the four families of clouds?

Answer 24

High middle low and vertical development

Question 25

To form clouds dot or other particles must be present as

Answer 25

Condensation nuclei

Question 26

What is the formula for calculating cloud bases?

Answer 26

Temperature Fahrenheit minus dewpoint Fahrenheit /4.4×1000

Question 27

What can you expect when flying through a low level temperature inversion and high humidity conditions

Answer 27

Fog haze or low clouds

Question 28

If temperature increases altitude, instead of decreasing altitude, it is known as a

Answer 28

Temperature inversion

Question 29

The rate of which the temperature of an air mass decreases as altitude increases is known as

Answer 29

Lapse rate

Question 30

How is humidity different from relative humidity?

Answer 30

Humidity is the actual amount of water vapor in the air relative humidity is how close to air is to saturation

Question 31

How does air temperature relate to dewpoint temperature?

Answer 31

The higher the temperature of the air, the higher dewpoint

Question 32

How does slope fog develop?

Answer 32

When force is moist stable air up a sloping land mass

Question 33

Middle clouds can be composed of water, ice crystals, and

Answer 33

Supercooled water

Question 34

What characteristic do all vertical development clouds have in common with

Answer 34

Instability

Question 35

What causes ice crystals to form directly from water vapor and grow until they are heavy enough to fall from a cloud

Answer 35

Disposition

Question 36

How is an air mass modified when it flows over a cooler surface

Answer 36

It’s lower layers are cool vertical movement is inhibited and the air mass stabilize