Geography AS Key Words

Description

Population
Sarah :)
Flashcards by Sarah :), updated more than 1 year ago
Sarah :)
Created by Sarah :) over 9 years ago
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Resource summary

Question Answer
Migration The movement of people from one permanent home to another, with the intention of staying at least a year. This move may be within a country (national migration) or between countries (international migration)
Urbanisation The growth in the proportion of people living in towns and cities
Emigrant Someone leaving their country of residence to move to another country
Rural-to-urban migration Moving home from a rural area to settle in a town or city
Industrialisation A process usually associated with the development of an economy where an increasing proportion of people work in industry
Demographic Transition Model (DTM) A theoretical model that shows changes in population information (birth and death rates and population growth) over a period of time
Push-pull factors Push factors are negative aspects of a place that encourage people to move away Pull factors are the attractions and opportunities of a place that encourage people to move there
Dependency Ratio The balance between people who are independent (work and pay tax) and those who depend on them. Ideally, the fewer dependents for each independent person, the better off economically a country is
HIV Human immunodeficiency virus, which attacks the immune system of people who are infected. Infection is caused when body fluids from an infected person are passed into the body of another. This can happen through unprotected sexual intercourse, blood transfusions, sharing needles, or from mother to baby during birth
Aids Acquired immune deficiency syndrome; a group of infections including pneumonia, TB and skin cancers that strike people whose immune system has been damaged by the HIV virus
Exponential Growth A pattern where the growth rate constantly increases often shown as a j-curve graph
Replacement Rate A birth rate high enough for a generation to be the same size as the one before it
Economic Migrant Someone trying to improve their standard of living, who moves voluntarily
Asylum Seekers People who believe that their lives are at risk if they remain in their home country and who seek to settle in another (safe) country
Life Expectancy The number of years a person is expected to live, usually taken from birth
Immigrant Someone entering a new country with the intention of living there
Country of Origin The country from which a migration starts
Transmigration A population policy that aims to move people from densely populated areas to sparsely populated areas and provide them with opportunities to improve the quality of their lives
Age Structure The proportion of each age group in a population. This links closely to the stage a country has reached in the demographic transition model
Birth Rate (BR) The number of babies born per 1000 people per year
Under Population When an increase in population could increase the average quality of life
Natural Decrease (ND) The death rate is greater than the birth rate
Host Country The country where the migrant settles
European Union (EU) A group of countries across Europe that work towards a single market i.e. they trade as if they were one country, without any trade barriers
Gender Structure The balance between males and females in a population. Small differences can tell us a great deal about a country or city
Asian 'tiger' One of the four east Asian countries of Hong Jong, South Korea, Singapore and Taiwan, where manufacturing industry grew rapidly from the 1960s to the 1990s
Newly Industrialising Countries (NICs) These include the Asian 'tigers' as well as other emerging industrial nations such as Malaysia, the Philippines and China
Infant Mortality The number of babies that die under a year of age, per 1000 live births
Child Mortality The number of children that die under five years of age, per 1000 live births
Zero Growth A population in balance. Birth rate is equal to death rate, so there is no growth or decrease
Natural Increase (NI) The birth rate is greater than the death rate
Natural Change The difference between birth rate and death rate, given as a percentage
Over Population When any increase in population reduces the average quality of life of the population
Optimum Population The population at which the quality of life of the people of a country or region is the highest possible, at a given level of technological development
Wave Frequency The number of waves per minute
Wave Crest The highest point of a wave
Wave Trough The lowest point of a wave
Wave Steepness The ratio of the wave height to the wave length (can't be steeper than 1:7 as this is when the wave breaks)
Wave Period The time taken for a wave to travel between one wave length
Wave Energy E∝LH² where L is wavelength and H is wave height. A small increase in wave length will result in a large increase in energy
Fetch Distance over which the wind blew
Wave Length The distance between two successive crests
Flow Resources (Renewable energy) Infinite, continuous energy sources which can be constantly renewed
Critical Renewable energy from sustainable energy resources from forests, plants and animal waste, which require careful management (e.g. replanting trees)
Non-critical Renewable energy from everlasting resources such as tides, waves, running water and solar power
Stock Resources (Non-renewable energy) Finite energy resources whose use means they will eventually run out
Fossil Fuel Fuel produced over millions of years from the breakdown of organic material, e.g. wood into coal
Energy Surplus Having more energy available than is required to meet demand
Energy Dependency The level of energy imports as a proportion of total energy consumption. The higher the proportion of energy imports, the more energy dependent the country is on others
Energy Mix The proportion of primary energy sources (e.g. coal, wood, oil and gas) used to meet demand in a given country
Geopolitics The study of the ways in which political decisions and processes affect the use of space and resources. It is the relationship between geography, economics and politics
Trans-National Corporations (TNCs) Companies that operate in more than one country. Many TNCs play a major role in the world energy production and distribution
Sustainable Development Development that meets the needs of the present without compromising the needs of future generations to meet their needs
Appropriate Technology That which is suitable for the area
Reserve The proportion of a resource that can be exploited under existing economic conditions and with available technology (the amount we can actually get to)
Recoverable Reserves The amount of a mineral likely to be extracted for commercial use within a certain time period and at a certain level of technology. They are known to exist as they are in unexplored areas near established areas of production
Speculative Reserves They are deposits that may exist in a geological basin where no exploration has yet taken place. They occur where the geological make up of the earth's crust is similar to regions that have yielded comparable deposits
Primary Energy Source Resources that can be burnt to generate energy directly, e.g. coal, oil and natural gas
Secondary Energy Source Energy sources generated using another fuel, e.g. electricity
Energy Security Having access to reliable and affordable sources of energy
Energy Gap The difference between energy supply and demand
Energy Poverty Having less energy than is required to meet demand
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