CONS 127 EXAM 4 COMPREHENSIVE STUDY
GUIDE
◉ Longitude.
Answer: vertical lines
angle that describes the east west position
◉ Prime Meridian.
Answer: Greenwich
origin of the measures of longitude (0 degrees of longitude)
◉ Parallel.
Answer: circle connecting all locations with a given latitude
◉ 3 ways the earth's shape can be mathematically defined.
Answer: sphere, ellipsoid, geoid
◉ The only correct representation of the Earth's surface.
Answer: geoid
,◉ Equivalent projection + example.
Answer: allows for comparing the surfaces of the Earth within the
map, since the areas of the continents are accurate
the shapes of the continents are distorted
ex. Mollweide or Gall-Peters
◉ Conformal projection + example.
Answer: the angles between positions are preserved so that ships
can navigate from place to place and know how far it is going to be
from where they are
land area is distorted
ex. Mercator
◉ Considering the case of Africa and Greenland, describe how map
projections might influence the perspective of the map viewer?.
Answer: mercator projection is not an equal-area projection and
distorts the relative size of landmasses, exaggerating the poles
, ◉ How was the metre first defined?.
Answer: one ten-millionth the size from the length of the equator to
the North Pole
◉ How is the metre defined now?.
Answer: defined as the length that light travels in a fraction of a
second
◉ The name of the unit that is equal to 1000nm.
Answer: 1 micrometre
◉ Small scale map.
Answer: covers a more area, but with not as much as detail
◉ Large scale map.
Answer: covers a small area but with great detail and accuracy
◉ Two ways scale can be indicated on a map.
Answer: bar scale
ratio scale
GUIDE
◉ Longitude.
Answer: vertical lines
angle that describes the east west position
◉ Prime Meridian.
Answer: Greenwich
origin of the measures of longitude (0 degrees of longitude)
◉ Parallel.
Answer: circle connecting all locations with a given latitude
◉ 3 ways the earth's shape can be mathematically defined.
Answer: sphere, ellipsoid, geoid
◉ The only correct representation of the Earth's surface.
Answer: geoid
,◉ Equivalent projection + example.
Answer: allows for comparing the surfaces of the Earth within the
map, since the areas of the continents are accurate
the shapes of the continents are distorted
ex. Mollweide or Gall-Peters
◉ Conformal projection + example.
Answer: the angles between positions are preserved so that ships
can navigate from place to place and know how far it is going to be
from where they are
land area is distorted
ex. Mercator
◉ Considering the case of Africa and Greenland, describe how map
projections might influence the perspective of the map viewer?.
Answer: mercator projection is not an equal-area projection and
distorts the relative size of landmasses, exaggerating the poles
, ◉ How was the metre first defined?.
Answer: one ten-millionth the size from the length of the equator to
the North Pole
◉ How is the metre defined now?.
Answer: defined as the length that light travels in a fraction of a
second
◉ The name of the unit that is equal to 1000nm.
Answer: 1 micrometre
◉ Small scale map.
Answer: covers a more area, but with not as much as detail
◉ Large scale map.
Answer: covers a small area but with great detail and accuracy
◉ Two ways scale can be indicated on a map.
Answer: bar scale
ratio scale
