Cons 127 final questions with correct
answers already passed!!!
What is latitude and longitude? CORRECT ANSWERS Latitude: angle that describes
the north-south
position.
Longitude: angle that describes the eastwest position.
Where is the prime meridian? CORRECT ANSWERS Greenwich, England
What is a parallel? CORRECT ANSWERS circle connecting all locations with a given
latitude
What are the three ways the earth's shape can be mathematically defined? CORRECT
ANSWERS 1) Sphere
- Simplest (and least accurate)
approximation of the shape of the Earth.
2) Ellipsoid - Mathematical approximation of the shape of
the Earth. The Earth is flattened at the poles and bulges
at the equator due to its revolution.
3) Geoid - Physical approximation of the figure of the
Earth.
What is the only correct representation of the Earth's surface? CORRECT ANSWERS
Geoid - Physical approximation of the figure of the
Earth. Shape of the surface of calmed oceans, in
the absence of other influences such as
winds and tides.
What is the main difference between an equivalent and conformal projection?
CORRECT ANSWERS 1) Cylindrical - Conformal:
the shape of countries/continents preserved
2) Conic - Equivalent Area:
The area of countries/continents is preserved.
Considering the case of Africa and Greenland, describe how map projections might
influence the perspective of the map viewer. CORRECT ANSWERS Appears to be
eurocentric
How was a metre first defined? CORRECT ANSWERS The metre was originally defined
in as "one ten-millionth of the
distance from the equator to the North
Pole".
, How is the metre defined now? CORRECT ANSWERS defined based on the speed
of light: "length of the path travelled by
light in vacuum during a time interval of
1/299 792 458 of a second"
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 Small
scale
What are two ways scale can be indicated on a map? CORRECT ANSWERS Graphic
scale/Bar scale
Fractional scale/Ratio scale
Verbal scale
What kind of map scale would be appropriate for representing large countries and/or
continents? For a city neighbourhood? CORRECT ANSWERS Continental (1:
20,000,000)
National (1:10,000,000)
Neighbourhood (1:15,000)
Name some 3 devices which can measure distances at different scales? CORRECT
ANSWERS telescopes, cameras, microscope
What is the difference between relative and absolute positioning? CORRECT
ANSWERS Relative - to other landmarks or features, also called dead-reckoning
Absolute - coordinates of a point in space, also called position fixing
What is a geodetic marker? CORRECT ANSWERS A geodetic marker is the exact
coordinates of the location it is placed in. It looks like a little plate in the ground and
provides a number of fixed stations whose relative/absolute positions are accurately
established. It then uses triangulation. If you tamper with them you will be put in jail for 9
years.
In Ocean navigation which is easier to calculate, latitude or longitude? CORRECT
ANSWERS latitude
What is the critical measurement to obtain an accurate longitude? CORRECT
ANSWERS time
What are the ways that we can define space? CORRECT ANSWERS The atmosphere
extends for 480 km and continues to merge with space as air pressure approaches a
vacuum.
answers already passed!!!
What is latitude and longitude? CORRECT ANSWERS Latitude: angle that describes
the north-south
position.
Longitude: angle that describes the eastwest position.
Where is the prime meridian? CORRECT ANSWERS Greenwich, England
What is a parallel? CORRECT ANSWERS circle connecting all locations with a given
latitude
What are the three ways the earth's shape can be mathematically defined? CORRECT
ANSWERS 1) Sphere
- Simplest (and least accurate)
approximation of the shape of the Earth.
2) Ellipsoid - Mathematical approximation of the shape of
the Earth. The Earth is flattened at the poles and bulges
at the equator due to its revolution.
3) Geoid - Physical approximation of the figure of the
Earth.
What is the only correct representation of the Earth's surface? CORRECT ANSWERS
Geoid - Physical approximation of the figure of the
Earth. Shape of the surface of calmed oceans, in
the absence of other influences such as
winds and tides.
What is the main difference between an equivalent and conformal projection?
CORRECT ANSWERS 1) Cylindrical - Conformal:
the shape of countries/continents preserved
2) Conic - Equivalent Area:
The area of countries/continents is preserved.
Considering the case of Africa and Greenland, describe how map projections might
influence the perspective of the map viewer. CORRECT ANSWERS Appears to be
eurocentric
How was a metre first defined? CORRECT ANSWERS The metre was originally defined
in as "one ten-millionth of the
distance from the equator to the North
Pole".
, How is the metre defined now? CORRECT ANSWERS defined based on the speed
of light: "length of the path travelled by
light in vacuum during a time interval of
1/299 792 458 of a second"
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 Small
scale
What are two ways scale can be indicated on a map? CORRECT ANSWERS Graphic
scale/Bar scale
Fractional scale/Ratio scale
Verbal scale
What kind of map scale would be appropriate for representing large countries and/or
continents? For a city neighbourhood? CORRECT ANSWERS Continental (1:
20,000,000)
National (1:10,000,000)
Neighbourhood (1:15,000)
Name some 3 devices which can measure distances at different scales? CORRECT
ANSWERS telescopes, cameras, microscope
What is the difference between relative and absolute positioning? CORRECT
ANSWERS Relative - to other landmarks or features, also called dead-reckoning
Absolute - coordinates of a point in space, also called position fixing
What is a geodetic marker? CORRECT ANSWERS A geodetic marker is the exact
coordinates of the location it is placed in. It looks like a little plate in the ground and
provides a number of fixed stations whose relative/absolute positions are accurately
established. It then uses triangulation. If you tamper with them you will be put in jail for 9
years.
In Ocean navigation which is easier to calculate, latitude or longitude? CORRECT
ANSWERS latitude
What is the critical measurement to obtain an accurate longitude? CORRECT
ANSWERS time
What are the ways that we can define space? CORRECT ANSWERS The atmosphere
extends for 480 km and continues to merge with space as air pressure approaches a
vacuum.
