3 B & C Flashcards
True or false: map projections never create distortions in a map when modeling the earth’s surface
False-they always create some distortions/differences
___________ maps show names and boundaries established by local, state, and national governments
Political
Ex: a map showing the different counties in the state of Florida
A ___________ map shows natural features, such as roads, streams, lakes, coastlines, and oceans
Geographic map
A _____________ map displays elevation and landform information, usually shown by special symbols called contour lines
A topographic map
Ex: maps that show how high mountains are.
In maps, ____________ is a pattern similar to that of a sundial.
Gnomonic
____________ lines show elevations on the map above a standard height, like sea level.
Contour lines
A __________ map shows information organized by a theme.
Thematic map
Ex: a map of plague victims by area or types of rocks by area.
List the 3 types of map projections
Plane, cone, and cylinder
True or false: cartographers choose a map’s projection based on their personal preference.
False. Cartographers choose a projection based on the map’s purpose
GIS stands for __________ ___________ ___________ (3 words) and is the technology used to create computer maps
Geographic information system
True or false: local governments rely on GIS for emergency services.
True
What are the 3 parts of GIS?
- DATA-computerized geographic data
- PROGRAMS-programs & hardware that allow scientists to use this data
- USERS-trained users who use the data to make maps
___________ is when surveyors use different geographic coordinates to find distance
Surveying
__________ sensing is when instruments are mounted to aircraft or satellites and collect large amounts of info about the earth’s surface
Remote
What is the best way to collect data about the ocean floor and why?
Acoustic sensing-because even if there is no light, the sound can bounce off the ocean’s floor, caverns, and canyons to help create a visual map.
