Fields And Isolines

Question 0

Field map

Answer 0

Used to represent any quantity that varies in a region of space

Question 1

Field

Answer 1

• region of space that has a measurable quantity at every point

Question 2

Isoline

Answer 2

Connecting points of equal value

• isotherms: points of equal temperature
• isobars: points of barometric (air) pressure
• contours: points of altitude/elevation

Question 3

Map

Answer 3

Representation of something

Question 4

Topography

Answer 4

• study of earths surface shape and features
• topography maps contain contour lines
• contour lines show the highs and lows of earths surface
• terrain is the 3D quality of earths surface

Question 5

Streams represented

Answer 5

.Direction of stream is shown on a topographic map by the way a contour line crosses the stream
. Streams are shown as a blue line on maps
. When contour lines cross a stream, the stream is flowing the opposite way then what the contour lines are pointing towards

Question 6

Depression contours

Answer 6

• depression contours show lower elevation
• drawn like contour lines with tick marks on the inside of a closed circle
• these tick marks are called hachure marks

Question 7

Identifying hills

Answer 7

Hills are represented on a topographic map by a series of concentric contour lines in a rough circle

Question 8

Finding slope

Answer 8

Closely spaced contour lines represent a steep slope

Widely spaced contour lines represent a gentle slope

Question 9

Benchmark

Answer 9

Place where the elevation is known

Question 10

Map scale

Answer 10

Map scale indicates your distance along the ground NOT elevation

Question 11

Gradient

Answer 11

Shows how quickly the value changes from one point to another