Chapter 3 Flashcards

1
Q

water vapor is the source of all

A

condensation and precipitation

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2
Q

essentially water on earth is considered

A

conserved from the water cycle

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3
Q

changing states requires a what

A

energy transfer in the form of heat

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4
Q

latent heat that must be

A

added or removed for a phase change

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5
Q

phase change requires

A

addition of heat

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6
Q

phase changed could be

A

melting, evaporation, and sublimation

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7
Q

phase changes requires the removal of heat

A

freezing, condensation, and deposition

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8
Q

saturation

A

the max quantity of water vapor air van hold at a given temp and pressure

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9
Q

warm air can hold more water vapor than

A

cold air

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10
Q

what is relative humidity

A

ratio of the air’s actual amount of water content compared with the amount of water air can hold at that temperature and pressure

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11
Q

2 ways relative humidity can be changed

A

add or remove water
change temperature

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12
Q

when the air is saturated and further cooling begins what happens

A

condensation (ex. dew, clouds)

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13
Q

what is dew point

A

the temperature to which air would have to be cooled for saturation to occur

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14
Q

for every 10C increase in temp the water vapor saturation does what?

A

doubles

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15
Q

high dew point indicates

A

moist air

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16
Q

low dew point indicates

A

dry air

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17
Q

when air temp and dew point are close

A

the RH is high

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18
Q

when air temp and dew point are far apart

A

the Rh is low

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19
Q

what is air pressure

A

the pressure exerted by weigh of air above

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20
Q

air pressure is exerted in what direction

A

in all directions equally

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21
Q

what is air pressure measured by

A

a barometer

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22
Q

increase an air temp does the barometer increase or decrease in reading

A

increases

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23
Q

what type of weather is it when the air pressure increases

A

sunny weather

24
Q

decrease in air pressure the barometer does what

25
when air pressure decrease what type of weather is there
cloudy
26
what creates a pressure difference
un-equal heating of the earth
27
air flows how
flows from areas of high pressure to areas of low pressure
28
air flowing from high pressure areas to low pressure areas creates what
creates wind
29
what is used to show differences in pressure on a map
isobars
30
spacing on the lines indicate the amounts of pressure what is this pressure called
pressure gradients
31
the greater the pressure gradients what happens
the greater wind speeds
32
closely spaced lines show a what type of pressure gradients
show high winds
33
large change in pressure over a small distance on the earths surface show
high wind speeds
34
rotation of the earth
24 hours a day
35
the earths rotation around the sun is
365 days
36
the tilt of the earths axis
23.5
37
why do the north and south hemispheres receive different amounts of daylight
the earth is tilted
38
the north and south hemisphere receive different hours of daylight
DURATIONS
39
the north and the south recieve different direct sun rays which is called
INTENSITIES
40
when we are tilted more towards the sun we receive less or more hours of sunlight
when we are tilted toward the sun we receive more hours of sunlight
41
when we are tilted away from we receive what type of daylight
we receive less hours of sunlight and less intense sun rays ( considered to be Winter)
42
when it is summer on the northern hemisphere it is what in the southern hemisphere
it is winter in the southern hemisphere
43
what is solstice
twice a year we receive the most hours of daylight or fewest hours of daylight
44
when is summer soloist
June 22 ( Longest day )
45
when is winter soliste
December 22 ( shortest day )
46
what is an equinox
twice a year we have equal amounts of daylight and darkness
47
when are the two days of equinox
Spring- March 21 vernal (fall) equinox - September 31
48
what is summer like in the Northern Hemisphere
they receive more direct sunlight and longer daylight
49
what is winter like in the northern hemisphere
less direct sunlight and shorter daylight
50
what is the corilous effect
the movement of particles ( such as air ) to the right in the northern hemisphere and in the southern hemisphere to the left
51
what are global winds caused by
uneven heating of the earths surface
52
what does the atmosphere do to balance these differences
acts like a giant heart transfer system using convection
53
polar easterlies
90-60 east latitude
54
prevsiling westerlies
latitude from the west
55
trade winds
30-0 latitude from the east
56
what doe jet streams do
form at latitudes where wind systems come together
57
high winds speed form
westernly and form high above the surface