Mixed Deck — All MATRIC Topics Flashcards

What is the term for the movement of people from rural areas to urban areas in search of better employment and services?

Answer: Rural-urban migration

Rural-urban migration describes the internal movement of people from the countryside to towns and cities, driven by economic and social pull factors.

What is the term for the number of people per unit area, usually expressed as people per square kilometre?

Answer: Population density

Population density is calculated by dividing the total population by the total land area, indicating how crowded a region is.

In humans, which blood vessels carry blood away from the heart?

Answer: Arteries

Arteries carry blood away from the heart, usually under high pressure. Veins return blood to the heart.

What is the term for the process of wearing away and transporting surface material by agents such as water, wind, and ice?

Answer: Erosion

Erosion involves both the detachment and removal of rock and soil particles from the Earth's surface by water, wind, glaciers, or waves.

What is the process by which green plants make food using sunlight?

Answer: Photosynthesis

Photosynthesis uses light energy to convert carbon dioxide and water into glucose and oxygen.

Which type of economic activity involves providing services to consumers rather than producing goods?

Answer: Tertiary sector

The tertiary sector covers service industries such as retail, banking, education, healthcare, and tourism that serve consumers directly.

Which quantity is a vector?

Answer: Velocity

Velocity has both magnitude and direction, making it a vector. Speed, distance and mass are scalars.

Money the owner takes out of the business for personal use is recorded as:

Answer: Drawings

Drawings represent assets withdrawn by the owner for personal use, which reduce owner's equity.

The exchange rate is R18 to US$1. How many rands do you get for US$25?

Answer: R450

Rands = 25 × R18 = R450.

On a standard South African topographic map (1:50 000), what colour is conventionally used to represent water features such as rivers and dams?

Answer: Blue

Blue is the internationally recognised cartographic convention for depicting water features, including rivers, lakes, dams, and the sea.

A business buys equipment for cash. How are the accounts affected?

Answer: One asset increases and another asset decreases

Equipment (asset) increases while Bank (asset) decreases by the same amount, so total assets are unchanged.

On a topographic map, what does a contour line represent?

Answer: A line connecting points of equal altitude above sea level

Contour lines join all points on a map that are at the same height (altitude) above sea level, allowing the shape of the terrain to be read from a flat map.

Which part of the human eye controls the amount of light entering it?

Answer: Iris

The iris adjusts the size of the pupil to control how much light enters the eye.

Which word is a synonym for 'difficult'?

Answer: Challenging

'Challenging' has a similar meaning to 'difficult'. The others are opposite or unrelated in meaning.

The median of the data set 4; 7; 9; 12; 18 is which value?

Answer: 9

The median is the middle value of an ordered list. With five values, the third value is the median: 9.

South Africa's most populous metropolitan area, which forms the economic heartland of the country, is located in which province?

Answer: Gauteng

Gauteng, containing Johannesburg and Ekurhuleni, is South Africa's most densely populated province and its economic centre.

In the arithmetic sequence 7; 11; 15; 19; ... what is the value of the 20th term?

Answer: 83

The first term a = 7 and common difference d = 4. Tn = a + (n-1)d, so T20 = 7 + 19(4) = 7 + 76 = 83.

Choose the antonym (opposite) of 'expand'.

Answer: Contract

'Contract' means to become smaller, the opposite of 'expand'.

Calculate the work done when a force of 20 N moves an object 4 m in the direction of the force.

Answer: 80 J

Work = force × distance = 20 × 4 = 80 J.

What is the basic structural and functional unit of all living organisms?

Answer: The cell

The cell is the smallest unit that can carry out all the processes of life.