Location on Earth Flashcards
Earth’s grid
system of north-south and east-west lines
latitude
distance north/south of the equator
parallels of latitude
lines from east to west
longitude
distance east or west of the prime meridian
meridians of longitude
lines from the north pole to the south pole
Circle or half circle
meridians of longitude
parallels of latitude
circle: parallels of latitude
half circle: meridians of longitude
What is the equator?
what does the equator divide the earth into
latitude
line equally distant from N.Pole and S.Pole
hemispheres
0 degrees
latitude of the N.Pole
latitude of the S.Pole
90 degrees N
90 degrees S
What city does the prime meridian pass through?
greenwich
How do you determine latitude based on angles?
find the point, follow that point down to the equator, from equator to the center of earth to that point, that angle is equal to the latitude that point is on and all point on the same line
How do you find longitude based on angles?
find the point, follow it down to the equator, then from the equator to the center of the earth to the point where the prime meridian and the equator cross. that angle is equal to the longitute of that point and all points along the line
When looking at the corners of a map, which are your lines of latitude and your lines of longitude
latitude sticks out a bit
longitute sticks in a bit
(numbers should be the same from e-w line and n-s line)
meridians of longitude spacing
farther apart along equator and squished together at poles
how far do meridians of longititude extend
relationship with prime meridian
180 degrees
directly opposite side of the globe from it
what do all meridians of longitude need to be designated with? 2 exceptions
E/W
prime meridian and 180 degrees
what is a great circle?
any plane that divides earth into equal halves/hemispheres
how many great circles are there on the globe? what lines?
what does this mean in terms of passing through places?
infinite (all the meridians of longitude paired with its opposite meridian (half circle+half circle)
can pass through any two places
what is the only parallel of latitude that is a great circle?
equator
what is a small circle
any circle that doesn’t cut the earth into equal hemispheres and isn’t the shortest distance btw 2 places
how does the great circle relate to distance
shortest distance btw 2 places
How many km/mi is 1 degree of an angle
111km
69 mi
What parallels of latitude are small circles
all except equator
which two latitudes are actually points rather than circles
north and south pole
in general, which meridians, paired with their opposite meridians, are small circles
none