Maps And Scale Conversion Flashcards
What does a map scale show?
A map scale refers to the relationship between distance on a map and the corresponding distance on the ground.
What are the three types of scales used on maps?
- Linear scale
- Representative Fraction (RF)
- Direct statement scale
Direct statement scale:
- uses words to describe what a distance on a map represents in the real world.
Linear scale:
- uses a special ruler on a map to show what a distance on a map represents in the real world.
Representative fraction scale:
- is a ratio where one unit on a map represents a specific number of the same unit in the real world.
What is a large scale map?
- covers a large area.
- has little detail.
What is a small scale map?
- covers a small area.
- shows a lot of detail.
What are the three types of maps?
- Road maps
- Topographical maps
- Thematic maps
What are road maps?
- a map drawn to scale using a small scale to indicate major highways and road for transportation purposes.
- several other features are shown including:
What are topographical maps?
- are detailed, accurate graphic representations of features that appear on the Earths surface.
- they include: railways, urban development, airports.
What are thematic maps?
- focuses on a specific subject area or theme.
- some maps include: climate or human characteristics.
How do you convert a RF scale into a direct statement?
- multiply by 100,000
How do you convert from a direct statement to an RF scale?
- Divide by 100,000
What are the four cardinal points on a compass?
- north, east, south and west.
What are the twelve ordinal points?
- North East, south east, south west, north west, north north east, east north east, east south east, south south east, south south west, west south west, west north west, north north west.