physical science study guide module 7

36 cards

physical science flash cards 8th grade. for module 7 test.


 
  
Created Nov 29, 2010
by
markandsusan11

 

 
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  Side A   Side B
1
what is weather?
 
the condition of the earth's atmosphere
2
what is climate?
 
a steady condition that prevails day in and day out in a particular region of the earth
3
where does thermal energy come from?
 
the sun
4
what does insolation mean?
 
radiation that hits the earth
5
how do clouds affect insolation?
 
they decrease it. because the insolation "bounces" off the clouds therefore not much insolation...
6
how does water and land affect insolation?
 
they absorb it
7
name 2 factors involving the earth and sun that affect thermal energy
 
distance from the sun and the axial tilt
8
how do clouds form? two processes from earlier modules
 
cloud condensation nuclei and adiabatic cooling
9
how does water vapor get from the ground into a cloud? (hydrosphere module) 
 
evaporation and transportation
10
what does a cumulus cloud look like, how are they formed?
 
big and fluffy. cold front. and as air rises it fans out in all directions expanding the volume
11
what alto mean?
 
high
12
what does nimbus/nimbo mean?
 
dark
13
what does a cirrus cloud look like and how are they formed and where do you usually find them?
 
very thin. since it is cold in the troposphere they are made ice and all the wind spreads them...
14
what does a stratus cloud look like and how are they formed?
 
they are layered.  when a mass of warm air is lifted slowly upward
15
what does a lenticular cloud look like and how are they formed?
 
an oval. when air encounters low pressure regions
16
what shape of orbit does the earth have around the sun?
 
ellipse
17
what is an aphelion?
 
the point at which the earth is farthest from the sun
18
what is a perihelion?
 
the point at which the earth is closest to the sun.
19
which gets more solar energy?
 
perihelion
20
which corresponds to our summer?
 
aphelion
21
what is a solstice?
 
the longest and shortest days of the earth
22
what is an equinox?
 
when day and night are both 12 hours long
23
what is latitude, longitude? equator? prime meridian? 
 
imaginary lines on the earth that go north, south, east and west. an imaginary line around...
24
what causes a region of low pressure? high pressure?
 
when hot air rises. when cold air sinks.
25
which rotates faster equator or poles?
 
equator
26
describe the coriolis effect and how it affects thengs traveling north in the northern hemisphere...
 
coriolis= the difference in speed between equator and poles. it curves east. it curves west.
27
where are the easterlies? westerlies?trade winds located?
 
poles(60-90 degrees), in between easterlies and trade winds(30-60), 0-30 degrees
28
when does a land breeze happen and why?
 
at night, land cools faster than water , temp difference creates breeze opposite of what happens...
29
when does a sea breeze happen and why?
 
during day, land heats faster than water temp difference cause breeze that blows from water...
30
what is a weather front?
 
a boundary between two air masses
31
name the three types of air masses
 
arctic, polar, and tropical
32
what does maritime and continental mean in reference to air masses?
 
maritime= when air mass form over seas continental= when air masses form over land
33
name the four types of weather fronts.
 
cold,warm,stationary,occluded
34
which weather front produces the most violent weather?
 
cold
35
which moves faster a cold or warm front?
 
cold
36
what is the reason we have seasons?
 
the axial tilt 


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