Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
what does a map tel u when contour lines are close together?
|
steep slope
|
|
|
when contour lines are far apart?
|
gentle slope
|
|
|
what do contour lines indicate?
|
the landscape's elevation, or heigh above sea level, on a topographic map
|
|
|
what do topographic maps show?
|
natural and human-made features of an area
|
|
|
what do contour lines connect?
|
points of equal elevation
|
|
|
what do contour lines connect?
|
points of equal elevation?
|
|
|
field
|
an area that can be measured
|
|
|
can field values change in time?
|
yes
|
|
|
vector field
|
magnitude and direction
|
|
|
examples of vector fields
|
wind, ocean currents, gravity, magnetic fields
|
|
|
scalar field
|
only magnitude (#)
|
|
|
examples of scalar field
|
elevation, air pressure, temperature field
|
|
|
isotherms
|
join points w/ temperatures of equal value
|
|
|
map
|
scaled model of an area
|
|
|
what is shown on a topographic/contour map
|
elevation (slope)
|
|
|
what does blue indicate on a contour map?
|
water
|
|
|
brown
|
interstate highways
|
|
|
black
|
state borders
|
|
|
red
|
important buildings
|
|
|
green
|
forests
|
|
|
what is a relief map
|
map that shows elevation and height
|
|
|
what is a contour line?
|
gives us shape of land anad joins points of equal elevation
|
|
|
contour interval
|
difference in elevation between two contour lines
|
|
|
3 ways to tell which direction a river is flowing
|
1. high to low elevation
2. river will always flow in the direction opposite to the way the contour lines bend or point 3. rivers always flow into an ocean |
|
|
gradient formula
|
change in field value
over distance |
