Science Unit 8 Test (Pt.1) Flashcards

(37 cards)

1
Q

When are thunderstorms most likely to occur?

A

at a cold front

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2
Q

What kind of weather occurs after a cold front passes?

A

cold and clear weather

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3
Q

What front would you expect to see rain for several days at?

A

a stationary front

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4
Q

What kind of area would have received drizzly rain 1 day ago?

A

A city in which a warm front has just passed and is still nearby.

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5
Q

What kind of pressure is at a warm front?

A

Low because precipitation is occuring.

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6
Q

When would you have sunny skies?

A

at areas of high pressure (high = happy)

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7
Q

What are the lines connecting points of equal air pressure on a weather map called?

A

isobars

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8
Q

What kind of front forms when a cold air mass displaces a warm air mass?

A

cold front

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9
Q

Where are hurricanes most likely to form?

A

above tropical oceans

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10
Q

Which conditions contribute to the decrease of a hurricane’s strength as it moves onto land?

A

lack of warm, moist air

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11
Q

Which What type of air mass would be the most likely to be associated with hurricanes?

A

maritime tropical (mT)

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12
Q

Climates of coastal cities tend to be _____ (compared to inland cities).

A

more moderate than inland cities

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13
Q

Which level of the atmosphere is weather ocuring?

A

troposphere

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14
Q

What happens to the temperature and wind speed as you move up through the troposphere?

A

temp decreases and wind speed increases (think of a mountain)

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15
Q

What direction does the jet stream blow?

A

west to east

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16
Q

Which heats up faster during the day but cools off faster at night, land or water?

17
Q

What type of air mass brings cool, moist air?

A

maritime polar (mP)

18
Q

If cold dry wind is blowing, what type of air mass is it coming from?

A

continental polar (cP)

19
Q

What atmospheric factors influence global weather patterns?

A

global winds, jet stream, and air pressure belt

20
Q

The initial source of energy for global winds is _____.

21
Q

Where else can precipitaion occur other than at a front?

A

low pressure areas

22
Q

Relative Humidity Equation:

A

the amount of vapor in the air/the total amount the air can hold

multipy answer by 100

23
Q

What causes the most damage in a hurricane?

A

storm surge & flooding

24
Q

How does air move?

A

Areas of high pressure to areas of low pressure

25
The Gulf Stream:
brings warm air to inland cities, moves hurricanes towards the U.S
26
The California Current:
brings cold air to coastal cities
27
High Pressure Weather:
clear, sunny skies
28
Low Pressure Weather:
lousy weather, precipitation
29
La niña:
hurricane, east coast, cooler pacific
30
El niño:
precipitation, west coast, warmer pacific
31
How do you use a chart to find relative humidity?
number of degrees differnce between wet and dry bulb readings.
32
How is an occluded front formed?
a warm front is caught in between two cold fronts, brings large amounts of rain/snow
33
barometer
measures air pressure
34
psychrometer
measures relative humidity
35
anemometer
measures wind speed
36
L to S: hurricane air mass, tornado, and thunderstorm
1. air mass 2. hurricane 3. thunderstorm 4. tornado
37
What increases as altitude increases in the atmosphere?
wind speed