CONS 127 Final Exam Questions And
Answers {100% Correct} Latest
Update!!!
What is latitude? CORRECT ANSWERS - an angle that ranges from 0° at the equator
to 90° (North or South) at the poles
- specifies the north-south position of a point on the Earth's surface
What is longitude? CORRECT ANSWERS - specifies the east-west position of a point
on the Earth's surface
- the distance east or west of the prime meridian
Where is the prime meridian? CORRECT ANSWERS - where longitude is defined to be
0°
- runs through greenwich, england
What is a parallel? CORRECT ANSWERS - circle connecting all locations with a given
latitude
What are the 3 ways the earth's shape can be mathematically defined? CORRECT
ANSWERS - sphere
- ellipsoid
- geoid
What is the only correct representation of Earth's surface? CORRECT ANSWERS - a
globe/geoid
What is the main difference between an equivalent and conformal projection?
CORRECT ANSWERS - Equivalent projection portrays size (area) accurately on a map
(no matter what part of the map we examine, the scale will remain accurate) but the
shape of objects are distorted
- Conformal projection helps us understand the true shape of the items on a map,
however the scale is less accurate the further one travels from the equator
Considering the case of Africa and Greenland, describe how map projections might
influence the perspective of the map viewer CORRECT ANSWERS - map projections
make the continents/countries closer to the poles look smaller, therefore there is the
hypothesis that their importance has been diminished in western consciousness
- for example, mercator projection is not an equal-area projection and distorts the
relative size of landmasses, exaggerating the poles
How was a metre first defined? CORRECT ANSWERS - originally defined as one ten-
millionth of the distance from the equator to the North Pole
, How is a metre defined now? CORRECT ANSWERS - defined based on the speed of
light (distance light travels)
- the length that light travels in a fraction of a second
- 39.37 inches
What is the name of the unit which is equal to 1000 nm? CORRECT ANSWERS 1
micrometre
Which covers more area, a small or a large scale map? CORRECT ANSWERS A large
scale map only shows a small area, but it shows it in great detail, so technically a small
scale map cover more area because the map must be scale down (less detailed but
shows more territory)
What are two ways scale can be indicated on a map? CORRECT ANSWERS - graphic
scale/bar scale
- fractional scale/ratio scale
What kind of map scale would be appropriate for representing large countries and/or
continents? For city neighbourhood? CORRECT ANSWERS 1. small scale (cover a
large area with coarse detail)
2. large scale (cover a small area with great detail and accuracy)
Name some 3 devices which can measure distance at different scale CORRECT
ANSWERS - electron microscope
- optical microscope
- camera
- telescope
What is the difference between relative and absolute positioning? CORRECT
ANSWERS - your position in relation to something else (dead-reckoning)
vs.
- coordinates of a point in space - identified by using a coordinate system, such as
longitude/latitude (position fixing - a fixed location that never changes)
What is a geodetic marker? CORRECT ANSWERS - points that are the basis for the
mapping of the Earth's surface
- a marker placed in the ground that gives us accurate information on their relative and
absolute position and is used to calculate other points by using triangulation
- every marker has a unique latitude and longitude
In ocean navigation, which is easier to calculate, latitude or longitude? CORRECT
ANSWERS Latitude because you can use the stars to measure your position
What is the critical measurement to obtain an accurate longitude? CORRECT
ANSWERS - obtaining the precise local time
Answers {100% Correct} Latest
Update!!!
What is latitude? CORRECT ANSWERS - an angle that ranges from 0° at the equator
to 90° (North or South) at the poles
- specifies the north-south position of a point on the Earth's surface
What is longitude? CORRECT ANSWERS - specifies the east-west position of a point
on the Earth's surface
- the distance east or west of the prime meridian
Where is the prime meridian? CORRECT ANSWERS - where longitude is defined to be
0°
- runs through greenwich, england
What is a parallel? CORRECT ANSWERS - circle connecting all locations with a given
latitude
What are the 3 ways the earth's shape can be mathematically defined? CORRECT
ANSWERS - sphere
- ellipsoid
- geoid
What is the only correct representation of Earth's surface? CORRECT ANSWERS - a
globe/geoid
What is the main difference between an equivalent and conformal projection?
CORRECT ANSWERS - Equivalent projection portrays size (area) accurately on a map
(no matter what part of the map we examine, the scale will remain accurate) but the
shape of objects are distorted
- Conformal projection helps us understand the true shape of the items on a map,
however the scale is less accurate the further one travels from the equator
Considering the case of Africa and Greenland, describe how map projections might
influence the perspective of the map viewer CORRECT ANSWERS - map projections
make the continents/countries closer to the poles look smaller, therefore there is the
hypothesis that their importance has been diminished in western consciousness
- for example, mercator projection is not an equal-area projection and distorts the
relative size of landmasses, exaggerating the poles
How was a metre first defined? CORRECT ANSWERS - originally defined as one ten-
millionth of the distance from the equator to the North Pole
, How is a metre defined now? CORRECT ANSWERS - defined based on the speed of
light (distance light travels)
- the length that light travels in a fraction of a second
- 39.37 inches
What is the name of the unit which is equal to 1000 nm? CORRECT ANSWERS 1
micrometre
Which covers more area, a small or a large scale map? CORRECT ANSWERS A large
scale map only shows a small area, but it shows it in great detail, so technically a small
scale map cover more area because the map must be scale down (less detailed but
shows more territory)
What are two ways scale can be indicated on a map? CORRECT ANSWERS - graphic
scale/bar scale
- fractional scale/ratio scale
What kind of map scale would be appropriate for representing large countries and/or
continents? For city neighbourhood? CORRECT ANSWERS 1. small scale (cover a
large area with coarse detail)
2. large scale (cover a small area with great detail and accuracy)
Name some 3 devices which can measure distance at different scale CORRECT
ANSWERS - electron microscope
- optical microscope
- camera
- telescope
What is the difference between relative and absolute positioning? CORRECT
ANSWERS - your position in relation to something else (dead-reckoning)
vs.
- coordinates of a point in space - identified by using a coordinate system, such as
longitude/latitude (position fixing - a fixed location that never changes)
What is a geodetic marker? CORRECT ANSWERS - points that are the basis for the
mapping of the Earth's surface
- a marker placed in the ground that gives us accurate information on their relative and
absolute position and is used to calculate other points by using triangulation
- every marker has a unique latitude and longitude
In ocean navigation, which is easier to calculate, latitude or longitude? CORRECT
ANSWERS Latitude because you can use the stars to measure your position
What is the critical measurement to obtain an accurate longitude? CORRECT
ANSWERS - obtaining the precise local time
