Chapter 10 Compass and map vocab

Question 1

What is an imaginary line connecting points; shows 0° of magnetic declination at a given date

Answer 1

Agonic line

Question 2

What line shows elevation on a map?

Answer 2

Contour lines

Question 3

What is a starting point of a scale called?

What is a level surface to which heights are referred

What is used as a reference for position?

Answer 3

Datum, vertical datum, horizontal datum

Question 4

A network of uniformly spaced parallel lines intersecting at right angles on a map:

Answer 4

Grid

Question 5

A line joining points having equal magnetic dec. as of a given date:

Answer 5

Isogonic Line

Question 6

Angular distance in degrees, minutes, or seconds, of a point north or south of the equator: (x)

Answer 6

Latitude

Question 7

Angular distance of a point east or west of the Greenwich Meridian: (y)

Answer 7

Longitude

Question 8

The difference between magnetic north and true north:

Answer 8

Mag dec

Question 9

A circle from pole to pole around the earth:

Which is a 0° line that passes through Greenwich England; also the origin of longitude

Answer 9

Meridian

Prime meridian

Question 10

Four sides area bounded by parallels of latitude

Answer 10

Quadrangle

Question 11

Elevations and depressions of the land

Answer 11

Relief

Question 12

A one square mile quadrangle that is a unit of subdivision of a township:

Answer 12

Section

Question 13

Difference of size from a map- to real life

Answer 13

Scale

Question 14

Visual geographic relief of a land surface via contour lines. A specific type of map:

Answer 14

Topography

Question 15

The direction of an object measured in degrees from north (three words)

Answer 15

Bearing, heading, azimuth

Question 16

180 degree opposite of a bearing

Answer 16

Back azimuth

Question 17

4 principle points of a compass: N, S, E, W

Answer 17

Cardinal points

Question 18

Plan of travel using a compass, map, or both:

Answer 18

Course

Question 19

Relative location of one terrain feature to another, described as points of a compass instead of degrees: (cardinal points, and intercardinal points)

Answer 19

Direction

Question 20

North established by the vertical UTM grid lines on a map:

Answer 20

Grid north

Question 21

Points between cardinal points: NW NE SE SW

Answer 21

Intercardinal points

Question 22

The direction to which the compass arrow points:

Answer 22

Magnetic North

Question 23

Process of determining ones location in the field with the help of landscape features, map, compass, or all three; making the north on the map, match up with north on the compass

Answer 23

Orientation

Question 24

A line from any position on the earth’s surface to the North Pole

Answer 24

True north