maps Flashcards

1
Q

no distortion

A

globe

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2
Q

polar regions extremely distorted

A

Mercator- straight lines

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3
Q

useful for topographic maps

A

polyconic

longitude lines converge

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4
Q

shoe roads and political boundaries

A

highway maps

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5
Q

show elevation

A

topographic maps

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6
Q

show rocks that are exposed at the surface of the earth

A

geologic maps

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7
Q

show very specific things

A

specialized maps

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8
Q

grid system to locate places on the earths surface

the earth is divided into degrees

A

latitude and longitude

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9
Q

1 degree can be divided into how many mins

A

60

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10
Q

1 min can be divided into how many secs

A

60

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11
Q

parallel to the equator

distance in degrees north or south of the equator

A

latitude lines

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12
Q

equator

A

0 degrees

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13
Q

North Pole

A

90° N

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14
Q

South Pole

A

90° S

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15
Q

70 miles

A

1° of latitude

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16
Q

1 min is 1.15 miles

A

nautical mile

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17
Q
meridians 
prime meridians 0 degrees is arbitrarily picked at Greenwich, England 
connect pole to pole
lines coverage at the poles 
not parallel, converge at poles
perpendicular to the equator
A

longitude lines

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18
Q

1:24000

A

numerical scale

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19
Q

bar scale

A

graphical scale

20
Q

conversion

A

verbal scale

21
Q

1:1000000
show us area at low detail
zoomed out

A

small scale maps

22
Q

1:24000
show a small area in lots of detail
zoomed in

A

large scale maps

23
Q

used to interpret symbols

A

map legend

24
Q

used on small scale to show more detail- large scale maps

A

inset maps

25
show the last of the land by using contour lines show the elevation above sea level usually in feet every point on a contour line is the exact same elevation
topographic maps
26
brown
topography
27
red
highways
28
blue
water
29
black
man made objects
30
green
vegetation over 3 feet
31
white
no vegetation or vegetation under 3 feet
32
the change in elevation between adjacent contour lines common interval is 20 feet in very flat terrain, the interval might only be 5 feet in steep terrain, the interval might be 40 or even 80 feet
contour interval
33
every 5th line is bold
contour line
34
area is steep
contour lines are close together
35
contour lines are superimposed
cliff
36
contour lines are spaced far apart
gentle slope
37
contours V upstream
rivers
38
closed loops
hills
39
multiple hills
ridges
40
shown with hachure marks
depression
41
gradient slope formula
change in elevation between two points in feet divided by change in horizontal distance between 2 points in miles
42
longitude of the prime meridian
0
43
longitude of international dateline
180
44
why is the distance between longitude lines not consistent
the lines converge at poles
45
represent 3 dimensional space in 2 dimensions drawn to scale used to be hand drawn now are mostly made by air photos and satellites
maps