AP Human Geography Unit 1 Key Vocabulary

Vocabulary flashcards covering all 51 foundational terms from the geographic concepts study sheet.

Absolute/Relative location

Absolute location describes a precise position using coordinates or an address, while relative location describes a place in relation to other features or places.

Aerial Photography

The capturing of images of the ground from an elevated position such as an aircraft, helicopter, or drone.

Cartogram

A map in which spatial geometry or land area is distorted and scaled according to a specific statistical variable.

Cartography

The science, art, and practice of making maps.

Choropleth Map

A thematic map that uses differences in shading, coloring, or symbols within predefined regions to represent statistical data values.

Compass rose

A figure on a map or chart used to display the orientation of cardinal directions (North, South, East, West).

Concentration

The spread of a feature or phenomenon over a given area, categorized as either clustered or dispersed.

Contagious Diffusion

The rapid, widespread diffusion of a feature, idea, or trend throughout a population regardless of rank or status.

Cultural Ecology

A geographic approach that emphasizes human-environment relationships and how human culture adapts to physical environments.

Cultural Landscape

The visible imprint of human activity and culture on the physical environment.

Data aggregation

The process of gathering data and summarizing it in grouped formats across varying geographic scales.

Density v Distribution

Density refers to the frequency or number of items in a defined area, whereas distribution refers to the spatial arrangement of those items.

Diffusion

The process by which a feature, innovation, idea, or trend spreads from one place to another over time.

Distance Decay

The diminishing in importance and eventual disappearance of a phenomenon with increasing distance from its origin.

Distortion

The alteration or misrepresentation of shape, area, distance, or direction when projecting a 3D spherical Earth onto a 2D flat map.

Dot distribution map (one-to-one; one-to-many)

A thematic map using dots to represent spatial distribution, where one dot stands for a single occurrence (one-to-one) or a specific quantity (one-to-many).

Environmental Determinism

A geographic theory suggesting that physical environmental conditions dictate and control human social and cultural development.

Expansion Diffusion

The spread of a feature or trend among people from one area to another in an additive process, remaining strong at its origin.

Formal/Uniform Region

An area in which everyone or everything shares one or more distinct common characteristics throughout.

Functional/Nodal Region

An area organized around a central focal point or node and tied to it through transportation, communication, or economic activity.

Geotagging

The process of adding geographic location metadata (such as latitude and longitude) to digital media or posts.

GIS

Geographic Information System; a computer software system used to capture, store, analyze, and display spatial data in layers.

GPS

Global Positioning System; a system of satellites used to determine precise absolute locations on Earth.

Globalization

The process by which economic, cultural, and political activities expand to a global scale, increasing worldwide interconnectedness.

Graduated Symbol Map

A thematic map that varies the size of symbols to represent different quantitative values across geographic units.

Hearth

The region or central point of origin from which an innovation, culture trait, or idea diffuses.

Hierarchical Diffusion

The spread of a feature or trend from key persons or nodes of power or authority to other places or people.

Humanistic/Human Geography

The branch of geography that analyzes the spatial relationships of human activities, cultures, populations, and environments.

International Date Line

An imaginary line on Earth roughly following the 180^\bar{\text{o}} meridian where the calendar date changes by one day upon crossing.

Isoline Map

A map that connects points of equal statistical value using continuous lines, such as contours or isotherms.

Longitude/Latitude

Latitude measures angular distance north or south of the Equator, while longitude measures angular distance east or west of the Prime Meridian.

Map scale

The ratio between a given distance on a map and the actual corresponding distance on Earth's surface.

Mental Map

An internal, personal representation of a portion of Earth's surface created from an individual's knowledge and perception.

Polder

A piece of low-lying land reclaimed from the sea or a river by constructing dikes and pumping out water.

Possibilism

The theory that the physical environment sets limits on human actions, but humans possess the cultural ability to adapt and overcome constraints.

Prime Meridian

The designated line of 0^\bar{\text{o}} longitude passing through Greenwich, England, from which longitudes east and west are measured.

Projections

Systematic methods of transferring the 3D spherical grid of latitude and longitude onto a flat 2D map surface.

Relocation diffusion

The spread of a feature, belief, or trait through the physical movement of people from one place to another.

Remote sensing

The acquisition of data about Earth's surface from a distance using sensors on satellites, drones, or aircraft.

Scale

The relationship between the portion of Earth being studied and Earth as a whole, ranging from local to global.

Sluices/Dykes

Water control gates (sluices) and protective earthen walls or dams (dykes) constructed to prevent flooding and manage water levels.

Site/situation

Site refers to the physical, internal traits of a location; situation refers to the position of a place relative to surrounding places and features.

Space-time compression

The reduction in time required for movement or information flow across space due to technological advancements in communication and transport.

Spatial pattern

The geometric arrangement or distribution of objects or phenomena across a given space.

Stimulus diffusion

The spread of an underlying concept or principal idea even though a specific original characteristic fails to diffuse or is adapted.

Thematic v Reference Maps

Reference maps emphasize geographic location of features; thematic maps emphasize spatial patterns and distributions of specific data variables.

Time-space compression

The perceptual feeling that distant places are closer together due to rapid advancements in transport and technology.

Tobler's Law

The first law of geography stating that everything is related to everything else, but near things are more related than distant things.

Toponym

The name given to a specific location or portion of Earth's surface.

Vernacular/Perceptual region

An area defined by people's subjective beliefs, feelings, or cultural perceptions rather than formal boundaries.

Zuider Zee Works/Delta Works

Major infrastructure and land reclamation projects in the Netherlands utilizing dikes, dams, and sluices to defend against coastal flooding.