Geographic Coordinate Systems and Projections Quiz

Why do we need a coordinate system to align different pieces of data on a map?

• To calculate ocean depth

• To track weather patterns

• To account for the Earth's irregular shape

• To measure the height of mountains

What is the shape of the Earth according to geodesy?

• Perfect sphere

• Flat plane

• Geoid

• Cube

How is latitude measured?

• From the Prime Meridian to the International Date Line

• From the center of the Earth to the surface

• From the North Pole to the South Pole

• From the equator to the poles

Why can't we reliably measure distances using longitude?

• Longitude lines are too short

• Longitude lines are not straight

• Longitude lines converge at the poles

• Longitude lines are parallel

What is the primary purpose of a geodetic datum?

• To fit an ellipsoid to the geoid

• To measure ocean depth

• To calculate mountain heights

• To track weather patterns

Which datum is used for global applications?

• ETRS89

• NAD27

• WGS84

• NAD83

What is the main challenge when projecting a curved surface onto a plane?

• Maintaining color accuracy

• Avoiding distortion

• Tracking animal migration

• Preserving temperature data

What are the three types of planar coordinate systems?

• Rectangular, triangular, hexagonal

• Azimuthal, cylindrical, conic

• Plane, sphere, cube

• Flat, curved, spherical

In what units are planar coordinate systems typically measured?

• Inches

• Feet or meters

• Radians

• Degrees

What should be considered when choosing a projection for a map?

• The color scheme

• The type of data being represented

• The size of the map

• The type of paper used