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AP Human Geography Definitions
Definitions of AP Human Geography Course
69
Geography
10th Grade
03/28/2015

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Term
Core-Periphery Model
Definition
In world-systems theory, the semi-periphery countries (sometimes referred to as just the semi-periphery) are the industrializing, mostly capitalist countries which are positioned between the periphery and core countries.
Term
Peters Projection
Definition
A world map projection in which areas are shown in correct proportion at the expense of distorted shape, using a rectangular decimal grid to replace latitude and longitude. It was devised in 1973 to be a fairer representation of equatorial (i.e., mainly developing) countries, whose area is underrepresented by the usual projections such as Mercator's.
Term
Mercator Projection
Definition
A projection of a map of the world onto a cylinder in such a way that all the parallels of latitude have the same length as the equator, used especially for marine charts and certain climatological maps.
Term
Fuller Projection
Definition
A projection of a world map onto the surface of an icosahedron, which can be unfolded and flattened to two dimensions.
Term
Goodes-Homosline Projection
Definition
An equal-area projection of the world, distorting ocean areas in order to minimize the distortion of the continents.
Term
Robinson Projection
Definition
A compromise map projection showing the poles as lines rather than points and more accurately portraying high latitude lands and water to land ratio.
Term
Scale
Definition
The relationship between distance on a map and on the earth's surface.
Term
Isoline Map
Definition
A line on a map, chart, or graph connecting points of equal value.
Term
Cartogram
Definition
A map on which statistical information is shown in diagrammatic form.
Term
Dot Density Map
Definition
A map type that uses a dot symbol to show the presence of a feature or phenomenon. Dot maps rely on a visual scatter to show spatial pattern.
Term
Proportional Symbol Map
Definition
A map that uses symbols of different sizes to represent data associated with different areas or locations within the map.
Term
Chloropleth Map
Definition
A thematic map in which areas are shaded or patterned in proportion to the measurement of the statistical variable being displayed on the map, such as population density or per-capita income.
Term
Malthus Population Catastrophe
Definition
A hypothetical limit on human population espoused by English theologian and scholar Thomas Robert Malthus in his 1798 Essay on the Principle of Population.
Term
Neo-Malthusians
Definition
A doctrine advocating control of population growth.
Term
Boserup's Hypothesis of Population
Definition
A postulate by Danish economist Ester Boserup that agricultural methods depend on the size of the population. The larger the world population grows, the more innovations are made to make feeding the expanding population possible.
Term
Population Pyramid Components
Definition
A graphical illustration that shows the distribution of various age groups in a population (typically that of a country or region of the world), which forms the shape of a pyramid when the population is growing.
Term
Population Pyramid Example Shapes
Definition
URL to picture of pyramid examples-http://ts1.mm.bing.net/th?&id=HN.608042626599224285&w=300&h=300&c=0&pid=1.9&rs=0&p=0
Term
Demographic Transition Model
Definition
A Model that links population changes to levels of economic, education, and healthcare development.
Term
Demographic Transition Model Visual
Definition
URL to picture of DTM-
http://ts1.mm.bing.net/th?&id=HN.608041277972285291&w=300&h=300&c=0&pid=1.9&rs=0&p=0
Term
Epidemiologic Transition Model
Definition
A phase of development witnessed by a sudden and stark increase in population growth rates brought about by medical innovation in disease or sickness therapy and treatment, followed by a re-leveling of population growth from subsequent declines in fertility rates.
Term
Epidemiologic Transition Model Visual
Definition
URL of ETM Visual-http://ts1.mm.bing.net/th?&id=HN.608018385790502483&w=300&h=300&c=0&pid=1.9&rs=0&p=0
Term
Gravity Model of Spatial Interaction
Definition
The degree of movement of people, goods and ideas within and across geographic space.
Term
Ravenstein's Laws of Migration
Definition
1. Net Migration amounts to only a fraction of the gross migration between 2 places.
2. The majority of migrants move short distances.
3. Migrants who move longer distances tend to choose big city destinations.
4. Urban residents are less migratory than people in rural areas.
5. Families are less likely to make international moves than young adults.
Term
Zelinsky Model of Migration Transition
Definition
The type of migration that occurs within a country depends on how developed it is or what type of society it is.
Term
Model of Migration Transition Visual
Definition
URL to visual of MTM-
http://ts1.mm.bing.net/th?&id=HN.608017329243033415&w=300&h=300&c=0&pid=1.9&rs=0&p=0
Term
Indo-European Language
Definition
The family of languages that by 1000 BC were spoken throughout Europe and in parts of southwestern and southern Asia
Term
I-E Language Diffusion Theories
Definition
Agriculture Theory of Language Diffusion- Theory of the diffusion of the Proto-Indo-European language into Europe through the innovation of agriculture (being more efficient than hunting and gathering). Its hearth is around modern day Anatolia (in Turkey).
Conquest Theory-

Theory of the diffusion of the Proto-Indo-European language into Europe through the speakers' overpowering of earlier inhabitants through warfare and technology (e.g., fighting on horseback). Its hearth is around modern day Ukraine.
Term
Domino Theory
Definition
A theory that speculated that if one state in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.
Term
Heartland Theory
Definition
The theory that controlling Eastern Europe is vital to control the world.
Term
Rimland Theory
Definition
The theory that the areas are key to controlling the world.
Term
Rank-Size Rule
Definition
A pattern of settlements in a country, such that the nth largest settlement is 1/n the population of the largest settlement.
Term
World-Systems Theory
Definition
As prosperity grows, the majority of the wealth is enjoyed by a core of the population. Furthermore, even though the periphery has a greater population, it is the countries with the strongest economic system that holds the strongest government.
Term
World-Systems Theory Visual
Definition
URL to WST Visual-
http://schoolworkhelper.net/wp-content/uploads/2011/04/United-Nations-World-Systems-Theory.gif
Term
Von Thunen's Agricultural Land Use Model
Definition
A model of land use that illustrates the trade off between land values and the distance from a central point of attraction.
Term
Von Thunen's Agricultural Land Use Model Visual
Definition
URL to Agricultural Land Use Visual-
http://www.martinsclass.com/aphug/wp-content/uploads/2010/04/Picture-61-185x185.png
Term
First Agricultural Revolution
Definition
the transition of humans from nomadic hunting/gathering to sedentary agricultural production of domesticated plants and animals.
Term
Second Agricultural Revolution
Definition
The improvement of farming techniques and technology that induced the industrialization of farming.
Term
Third Agricultural Revolution
Definition
More advanced technology is developed for farming, land is used more efficiently due to new techniques, and genetically modified organisms are developed.
Term
Liberal Models of Development
Definition
Self-Sufficiency Model- says a country should spread investment as equally as possible across all sectors of its economy and in all regions.
International Trade Model- The model that illustrates the exchange of capital, goods, and services across international borders or territories.
Term
Structuralist Model of Development
Definition
The notion that resources flow from a "periphery" of poor and underdeveloped states to a "core" of wealthy states, enriching the latter at the expense of the former.
Term
New International Division of Labor
Definition
The spatial shift of manufacturing industries from advanced capitalist countries to developing countries.
Term
Rostow's Stages of Growth
Definition
Each stage is a function of productivity, economic exchange, technological improvements, and income. Economic growth occurs when advancing from one stage to another.

1. Traditional Society
2. Transitional Society
3. Take-off
4. The Drive to maturity
5. High Mass Consumption
Term
Fordism
Definition
A manufacturing philosophy that aims to achieve higher productivity by standardizing the output, using conveyor assembly lines, and breaking the work into small deskilled tasks.
Term
Post-Fordism
Definition
The dominant system of economic production, consumption and associated socio-economic phenomena, in most industrialized countries since the late 20th century.
Term
Location Interdependence Theory
Definition
Theory that suggests competitors, in trying to maximize sales, will seek to constrain each other's territory as much as possible which will therefore lead them to locate adjacent to one another in the middle of their collective customer base.
Term
Weber Model of Industrial Location
Definition
Theory that states the location of manufacturing establishments is determined by the minimization of three critical expenses: labor, transportation, and agglomeration.
Term
Least Cost Theory Visual
Definition
URL to Least Cost Visual-
http://ts1.mm.bing.net/th?&id=HN.608050589456073644&w=300&h=300&c=0&pid=1.9&rs=0&p=0
Term
Profit Maximization
Definition
The best location for an industry is where the profit is the greatest.
Term
Bid Rent Theory
Definition
The price and demand for business real estate depends upon the distance of the real estate from the CBD.
Term
Bid Rent Visual
Definition
URL to Visual-
http://en.wikipedia.org/wiki/File:Bid_rent1.svg
Term
Borchert's Model of Urban Evolution
Definition
American urbanization can be divided into 5 unique periods which are characterized by a transportation technology that influenced urban creation and growth.
1. 1790 to 1830: wagons, boats
2. 1830 to 1870: regional railroads, steamboats
3. 1870 to 1920: national, long-distance railroads
4. 1920 to 1970: automobilies, airplanes
5. 1970 to today: satellites, electronics, jets
Term
Central Place Theory
Definition
A theory of how the urban hierarchy is functionally and spatially distributed.
Term
Central Place Theory Visual
Definition
URL to CPT Visual-
http://www.geocurrents.info/wp-content/uploads/2012/09/Central-Place-Theory-Model.jpg
Term
Concentric Circle
Definition
A model of a city's functional zones composed of a CBD center and circles gradually increasing.
Term
Concentric Model Visual
Definition
URL to CM Visual-
http://derbyshireroad.edublogs.org/files/2010/02/Concentric-Model.jpg
Term
Sector Model
Definition
A model of a city's functional zones composed of a CBD center and sectors extending outward.
Term
Sector Model Visual
Definition
URL to SM Visual-
http://upload.wikimedia.org/wikipedia/commons/0/0f/Hoyt_model.svg
Term
Peripheral Model
Definition
A metropolitan model with an inner city surrounded by suburbs and business areas.
Term
Peripheral Model Visual
Definition
URL to PM Visual-
http://lewishistoricalsociety.com/wiki2011/article_image.php?image_type=article&id=149
Term
Multiple-Nuclei Model
Definition
The CBD is losing dominance in the organization of cities and other sectors are becoming nuclei of their own.
Term
Multiple-Nuclei Model Visual
Definition
URL to MNM Visual-
http://upload.wikimedia.org/wikipedia/commons/b/b1/Ulman2.png
Term
Urban Realms Model
Definition
Super cities are formed by a main urban center with independent suburban realms that are interconnected into one functional zone.
Term
Urban Realms Visual
Definition
URL to UR Visual-
http://ts1.mm.bing.net/th?&id=HN.608047067590167163&w=300&h=300&c=0&pid=1.9&rs=0&p=0
Term
Latin American Cities Model
Definition
Combines elements of Latin American Culture and globalization by combining radial sectors and concentric zones. Includes a thriving CBD with a commercial spine. The quality of houses decreases as one moves outward away from the CBD, and the areas of worse housing occurs in the Disamenity sectors.
Term
Latin American Cities Visual
Definition
URL to LAC Visual-
http://ts1.mm.bing.net/th?&id=HN.608003284685684901&w=300&h=300&c=0&pid=1.9&rs=0&p=0
Term
SE Asian Cities Model
Definition
Model that features high-class residential zones that stem from the center, middle-class residential zones that occur in inner-city areas, and low-income squatter settlements that occur in the periphery.
Term
SE Asian Cities Visual
Definition
URL to SE AC Visual-
http://ts1.mm.bing.net/th?&id=HN.608028556283022897&w=300&h=300&c=0&pid=1.9&rs=0&p=0
Term
African Cities Model
Definition
Model similar to a Concentric Zone Model, but has 3 CBD's, ethnic neighborhoods, informal satellite townships, mining and manufacturing areas, and lacks upper and middle classes.
Term
African Cities Visual
Definition
URL to AC Visual-
http://ts1.mm.bing.net/th?&id=HN.608029505472825674&w=300&h=300&c=0&pid=1.9&rs=0&p=0
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