Lesson 2 Mapping It Out

Question 0

Global projection

Answer 0

A spherical model of the earth. A globe.

Question 1

Advantages for a global projection

Answer 1

The most accurate way to depict the entire earth

Direction, shape, distances, and area can all be accurately represented.

Question 2

Disadvantages of a global projection

Answer 2

Can’t show great detail
Expensive to make
Bulky to carry
Hard to store

Question 3

Cylindrical projection

Answer 3

Designed as if a cylinder were wrapped around the globe.

Question 4

Advantages to cylindrical projections

Answer 4

Can be created on a flat piece of paper, convenient and inexpensive
Accurate for depicting small areas
Can depict the entire earth at once.

Question 5

Disadvantage to cylindrical projections.

Answer 5

Distorts large areas

The areas near the poles apper larger then they really are. i.e South America and greenland

Question 6

Pseudocylindrical projections

Answer 6

An oval projection of the entire world.

Question 7

Advantages of pseudocylindrical projections

Answer 7

The scale is constant along any given latitude.
The sizes are less distorted then in some other projections
The entire earth can be depicted at once.

Question 8

Disadvantages to pseudocylindrical projections.

Answer 8

No area of the map is completely free of distortion

Shapes are more distorted then on many other projections.

Question 9

Conic Projections

Answer 9

Designed as if a cone were placed over the world

Question 10

Advantages of conic projections.

Answer 10

Good for depicting areas with large east-west dimensions, like the U.S.
Accurate scale along a parallel line
Can depict the entire earth on one map

Question 11

Disadvantage of conic projections

Answer 11

The scale is distorted North to South

Question 12

Flat plane projections

Answer 12

A portion of the globe is shown on a flat projection so that if it were placed on a globe it would only touch the globe at one point

Question 13

Advantages of flat screen projections.

Answer 13

The direction from a central point, such as the North Pole, is accurate.
Shows distance and areas accurately in relation to the central point
Accurate for use in navigation.

Question 14

Disadvantages of flat plane projections

Answer 14

The direction and areas are only accurate in relationship to the central point.
It takes several flat projections to depict the entire earth.

Question 15

Advantages of Equal-area projections

Answer 15

Shows correct proportion of areas

Can depict the whole earth at once