# Geography: Mapwork

## 42 terms

Cartographer

Cartography

### •Political •Physical •Thematic

What are the 3 different types of maps?

### What Is a political map?

Shows countries and their boarders, capitals and towns

### Show natural features, eg. Mountains, rivers and seas

What is a physical map?

### Shows various aspects of country eg. Rainfall and biomes

What Is a thematic map?

### Orthophoto and topographical

What 2 maps do we mainly use in south Africa?

### A topographical map is a map that shows man made surface features.

What is a topographical map?

### 1:50 000

What is the scale of a topographical map?

### •show larger area map and has bigger scale (1:50 000) •shows physical and man-made features •shows less detail but has a a key •more expensive to make

What are the characteristics of a topographical map?

### 20m

What is the measurement of an interval when we talk about contours?

### Lines which join places at similar height above sea level

What Are contours?

### A code indicates the position of a map on a grid of longitude and latitude

What is a map code?

### {missing image}

What does it look like?

### A Orthophoto map is a birds eye view picture map combined with a topographical map

What is a Orthophoto map?

### •smaller area map, has smaller scale but the picture is enlarged of a certain area (1:10 000) •shows more detail •is in black and white •has no key •cheaper

What are the characteristics of a Orthophoto map?

### The amount by which the represented reality has been reduced on a map

What Is the definition of scale?

### •fraction scale •linear scale •word scale

What 3 scales can you get?

### This is the the amount by which represented reality has been reduced and is shown as a fraction eg. 1: 50 000

What is a fraction scale?

### 1cm = 50 000cm/ 0,5km/ 500m on ground

In a fraction scale what does 1:50 000 represent?

### A straight line marked off in cm's representing the ground distance in km

What is a linear scale?

### A word scale is taking any scale and writing it out in words

What is a word scale?

### 1:50 000 = 1cm on the map is equal to 50 000cm on the ground in reality

What is an example of a word scale?

### Height above sea-level

What is altitude?

### There are four ways: •contour lines= all places on this line are above sea-level •spot height= the exact height of the dot, is equal to 1 decimal place •trigonmetric beacon= trig beacon no. Is measured in meters above sea-level •bench mark= the point on the road above sea level

How many ways can altitude can be expressed and what are they?

### The point of intersection between 2 lines of longitude an lines of latitude

What is a grid reference?

### Grid references are used to give exact locations of particular places on the map.

What are grid references used for?

### Latitude is always south and longitude is always east

What is specific with grid referencing in south Africa?

### An approximate way it describing the position of one place in relation to another.

What is direction?

### A valley

What contour is this?

### A convex slope

What contour is this?

### Steep slope

What contour is this?

### Gentle slope

What contour is this?

### Even slope

What contour is this?

### Convex slope

What contour is this?

### Stepped slope

What contour is this?

### Cliff (vertical slope)

What contour is this?

### Slope

What contour is this?

### A pass

What contour is this?