Population Definitions

Question 1

Population Distributions

Answer 1

Spread of population over the world, countries, regions

Question 2

Population Density

Answer 2

The ratio of people compared to land per square km

Question 3

Population Density Formula

Answer 3

(total population / total land area)

Question 4

Under population

Answer 4

When a country has very few people compared to resources

Question 5

Over Population

Answer 5

When a country has too many people compared to resources

Question 6

Optimum Population

Answer 6

Maximum output per head of population with the available resources

Question 7

Population Explosion

Answer 7

Sudden increase in population over a short period of time

Question 8

Population Structure

Answer 8

Composition of population (age groups, male:female ration) refelected in a population pyramid

Question 9

Birth Rate (BR)

Answer 9

Number of births in a given year per 1000 of total population

Question 10

Birth Rate Formula

Answer 10

(annual number of births / total population ) x 100

Question 11

Death Rate

Answer 11

Number of deaths in a given year per 1000 of total population

Question 12

Death Rate Formula

Answer 12

(annual number of deaths / total population) x 100

Question 13

Natural Change

Answer 13

Difference between death rate and birth rate per 1000

Question 14

Natural Change Formula

Answer 14

(BR - DR)

Question 15

Natural Increase

Answer 15

Increase in population over a period of time

Question 16

Natural Increase Formula

Answer 16

( yearly change / 10 years)

Question 17

Population Growth Rate

Answer 17

The rate at which there is an increase in population from one year to the next

Question 18

Population Growth Rate Formula

Answer 18

(Natural Increase / Original Population ) x 100

Question 19

Average annual percentage increase

Answer 19

Average population increase per year

Question 20

Average annual percentage increase Formula

Answer 20

[ (Natural increase / original population ) x 100 ] / number of years)

Question 21

Infant Mortality Rate

Answer 21

Number of deaths of infants below 1 year per 1000 births per annum. Given as a ratio to number of live births

Question 22

Child Mortality Rate

Answer 22

Number of deaths of children under 5 years per 1000 births per annum as a ratio to number of live births

Question 23

Life Expectancy

Answer 23

Average number of years people are expected to live

Question 24

Fertility Rate

Answer 24

Number of children born to a women during reproductive years - 15 - 45 years

Question 25

Sex Ratio

Answer 25

Number of Females to Number of Men in a country

Question 26

Urban Population

Answer 26

Number of people working and living in urban areas expressed as a percentage

Question 27

Urban Population Formula

Answer 27

(urban population / total population) x 100

Question 28

Migration

Answer 28

Movement of people from one place to another

Question 29

Immigration

Answer 29

Number of people moving into a country

Question 30

Emigration

Answer 30

Number of people moving out of a country

Question 31

Net Migration

Answer 31

Difference between number of Immigrants and emigrants

Question 32

Dependency Ratio

Answer 32

Number of non working dependents (1 - 15 and over 50) for every 100 workers

Question 33

Dependency Ratio Formula

Answer 33

(Number of dependents / Number of adults) x 100

Question 34

Working population

Answer 34

Number of people economically active (people in employment between 15 and 50)

Question 35

Choropleth Graph

Answer 35

A map that shows differences in densities by using sharing or colours. The darker the shade, the higher the population density.