Unit One: Maps and Map Projections

These flashcards cover key vocabulary and concepts related to maps and map projections as discussed in Unit One.

Map Projection

A method of representing a three-dimensional object, like a globe, on a two-dimensional surface while maintaining some form of accuracy.

Distortion

The alteration of the original shape, area, direction, or distance when projecting a globe onto a map.

Reference Maps

Maps that show boundaries, geographic features, and general information about an area.

Thematic Maps

Maps that focus on specific themes or topics, presenting data related to those themes.

Topographic Map

A type of reference map that uses contour lines to depict terrain and elevation changes.

Contour Lines

Lines on a topographic map that connect points of equal elevation, indicating the shape of the land.

Absolute Distance

The exact measurement of distance between two points, often represented in units such as miles or kilometers.

Relative Distance

A measurement of distance that is perceived or described in relation to other locations or areas.

Absolute Direction

The exact compass direction in which one is heading, such as north, south, east, or west.

Relative Direction

A direction described in relation to other landmarks or areas, such as saying 'left' or 'right'.

Dot Density Map

A type of thematic map that uses dots to represent a population density and how people are distributed in an area.

Steeper Terrain

A landscape where contour lines are closely spaced, indicating a rapid change in elevation.

Dispersed Population

A population that is spread out over a geographic area, showing low density.

Clustered Population

A population that is concentrated or grouped closely together in a particular area.

Political Boundaries

Defined borders that separate different political regions such as countries or states.

Public Transportation Routes

Pathways that are used by public transport vehicles to help people navigate in urban areas.

Geographic Features

Natural landmarks and physical characteristics of the earth, such as mountains, rivers, and valleys.

Elevation Changes

Variations in height within a landscape that can be shown using topographic maps.

Map Distortion Reasons

Distortion occurs due to the challenge of projecting a three-dimensional object onto a two-dimensional surface.

Information Display in Reference Maps

Reference maps are used for directions, displaying features like property lines and transportation routes.