Mapping Flashcards

1
Q

what is three dimensional, most accurate model of the earth, and not convenient because of its size

A

globe

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2
Q

what is 2-dimensional and is not as accurate as the globe

A

maps

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3
Q

all maps have

A

distortion

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4
Q

what are mapmakers called

A

cartographer

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5
Q

different ways of drawing the world map

A

projections

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6
Q

distorts the areas near the poles

A

mercator projection

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7
Q

shows earths poles and distorts landmass shaped away from the center

A

gnomonic projection

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8
Q

least distorted and useful for mid-latitudes, most distorted near the equator

A

polyconic projection

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9
Q

lines that measure north and south (equator)

A

latitude

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10
Q

lines that measure east to west (prime meridian)

A

longitude

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11
Q

latitude and longitude are broken down into (think time wise) ex. 30 degree 54’ 20’’

A

minutes and secs, 60 mins in a degree, 60 secs in a min

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12
Q

where is the equator located (degrees)

A

0 degrees latitude

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13
Q

where is the prime meridian located (degrees)

A

0 degrees longitude

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14
Q

where is the north pole located

A

90 degrees N

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15
Q

where is the south pole located

A

90 degrees S

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16
Q

how many hours is one rotation for earth

A

24

17
Q

how many degrees per hour

A

15

18
Q

because there are 24 time zones every 15 deg longitude is

A

a 1 hour difference

19
Q

which way does the world spin

A

counterclockwise

20
Q

time zones on the east are ________ of the west

A

ahead

21
Q

why are time zones not always straight

A

they avoid cities so its less confusing

22
Q

what is a topographic map

A

a map showing relief features such as mountains, hills, and valleys (2D representation of a 3D world)

23
Q

what are contour lines

A

lines joining in points of equal elevation relative to sea level

24
Q

contour lines next to each other show what

A

change in elevation

25
Q

what is the contour interval and what happens every 5th contour interval

A

difference in elevation between 2 lines that are next to each other, index contour which is always bold and shows a number

26
Q

contour lines that are closer together represent:
contour lines that are farther apart represent:

A

steeper slope
gentler slope

27
Q

contour lines that form a circle show

A

hills or mountains

28
Q

what is it called when hatch marks or teeth are shown on the contour lines pointing to the center

A

depression

29
Q

what do contour lines never do

A

never cross, split, or divide

30
Q

contour lines make a __ shape when crossing a stream and a __ shape when going up on a valley

A

u,v

31
Q

slope and gradient are measures of ________

A

steepness

32
Q

equation for gradient

A

change in elevation/ distance traveled

33
Q

topographs can sometimes show a picture/plot that show the what

A

shape of the surface of the ground