Unit 1 Flashcards
(70 cards)
What is Geography?
The study of where things are found on Earth and why they are there.
What is a Map?
A 2-D representation of Earth’s surface.
Physical Maps
Show physical features of land.
Political Maps
Show boundaries.
Isoline Maps
Reflect patterns and relationships.
Choropleth Maps
Shaded to display average values of data.
Cartograms
Show geographic size proportional to the data being applied.
Dot Maps
Used to display densities and concentrations.
Maps are…
Thematic.
What is Cartography?
The science of making maps.
What is Map Scale?
The relationship between the size of an object or length on a map and its physical size in real life.
Ratio/Fraction Scale
Shows the ratio between distances on a map, and their real distances on Earth
Written Scale
Describes the relationship between distances on the map and those on Earth
Graphic Scale
Most often showing a bar line marked based on distances on Earth’s surface.
What is Projection?
The method of transferring locations on Earth’s surface to a flat map
What is Distortion?
Any misshapen or inaccurate representation of a map, whether by an area’s shape, the distance between points, an altering of relative size, or the direction between points.
Mercator Projection
Shows distortion of size and shape near the poles.
Robinson Projection
Most likely used, shows a very low degree of distortion.
Goode Homolosine Projection
Shows the true size of shape and land, but distorts distances.
Large Scale vs. Small Scale
Small area with large detail / Large area with little detail
What is the Geographic Grid?
A system of imaginary arcs drawn in a grid pattern on Earth’s surface.
What are meridians?
Arcs drawn between the north and south poles, numbered according to longitude.
What are parallels?
Arcs drawn parallel to the equator at right angles to meridians, numbered according to latitude.
Standard for Telling Time?
Greenwich Mean Time (GMT)