Science final Flashcards

(44 cards)

1
Q

definition of weather

A

condition of earth’s atmosphere

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2
Q

temperature is measured by using a what

A

thermometer

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3
Q

Definition of humidity

A

amount of water vapor in the air

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4
Q

definition of relative humidity

A

amount of water vapor in the air compared to the amount needed to reach saturation

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5
Q

What is relative humidity measured with

A

pschrometer

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6
Q

Define dew point

A

the temperature when more condensation then evaporation occurs

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7
Q

Define precipitation

A

any form of water coming from the clouds

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8
Q

What is precipitation measured with

A

a rain gauge

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9
Q

what are three main cloud types and name the looks

A

cumulus cloud,large and puffy,stratus cloud,layered and thin,cirrus cloud,thin and wispy

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10
Q

What is air pressure

A

the amount of force being pressed on earth by air molecules

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11
Q

What is air pressure measured with

A

a barometer

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12
Q

What is the definition of wind

A

movement of air due to differences in air pressure that is moving vertically and horizontally

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13
Q

What is wind measured with

A

a anemometer

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14
Q

Define visibility

A

Transparency of the atmosphere or how far you can see

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15
Q

how is visibility measured

A

with how far you can see

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16
Q

3 ways to collect these information

A

satellite,buoy,and ground station

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17
Q

define orographic lifting

A

when warm air rises over cool air

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18
Q

What are in the lower part of the atmosphere

19
Q

what clouds are in the higher part of the atmosphere

20
Q

What clouds are in the middle place of the atmosphere

21
Q

What is vertical development

A

when rapid lifting of moist,warm air happens

22
Q

What are the different fog formations

A

sea,ground,steam,radiation

23
Q

how does the water cycle affect the weather

A

by adding precipitation and humidity

24
Q

define air mass

A

a large volume of air

25
what can a air mass change as it moves to a new area
temperature and humidity
26
define front
a boundary between two air masses
27
what is a cold front
when cold air sinks under warm air
28
what is a warm front
when warm air moves over cold air
29
what is a stationary front
when cold and warm air masses stop moving
30
what is a high pressure system and what weather does it bring
when air sinks and warms,and it has sunny weather
31
what is a low pressure system and what weather does it bring
when air rises then cools,it brings rainy weather
32
how can wind affect the weather
by bringing in heat and coldness from other places and bringing in clouds
33
define jet streams
long distant winds that move west to east
34
name the two type of jet streams
polar,subtropical jet streams
35
how can ocean currents effect the weather
bringing energy across the surfaces and changes temperature and humidity
36
define thunderstorm
a intense storm with heavy wind,rain,and has lightning and thunder
37
how do thunderstorms form
from rising air
38
define lightning
an electrical discharge that happens between a positive and negative area
39
define thunder
a rapid expansion of air
40
define hurricane
a tropical low pressure system that forms in water
41
define storm surge
when a hurricane meets land
42
define tornado
a destructive rotating column of air
43
where do tornadoes usually form
in tornado alley
44
name 3 ways to be prepared
have a plan,practice plan ,and be aware