Location on Earth

Question 1

Earth’s grid

Answer 1

system of north-south and east-west lines

Question 2

latitude

Answer 2

distance north/south of the equator

Question 3

parallels of latitude

Answer 3

lines from east to west

Question 4

longitude

Answer 4

distance east or west of the prime meridian

Question 5

meridians of longitude

Answer 5

lines from the north pole to the south pole

Question 6

Circle or half circle

meridians of longitude
parallels of latitude

Answer 6

circle: parallels of latitude
half circle: meridians of longitude

Question 7

What is the equator?

what does the equator divide the earth into
latitude

Answer 7

line equally distant from N.Pole and S.Pole

hemispheres
0 degrees

Question 8

latitude of the N.Pole
latitude of the S.Pole

Answer 8

90 degrees N
90 degrees S

Question 9

What city does the prime meridian pass through?

Answer 9

greenwich

Question 10

How do you determine latitude based on angles?

Answer 10

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

Question 11

How do you find longitude based on angles?

Answer 11

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

Question 12

When looking at the corners of a map, which are your lines of latitude and your lines of longitude

Answer 12

latitude sticks out a bit
longitute sticks in a bit
(numbers should be the same from e-w line and n-s line)

Question 13

meridians of longitude spacing

Answer 13

farther apart along equator and squished together at poles

Question 14

how far do meridians of longititude extend

relationship with prime meridian

Answer 14

180 degrees

directly opposite side of the globe from it

Question 15

what do all meridians of longitude need to be designated with? 2 exceptions

Answer 15

E/W
prime meridian and 180 degrees

Question 16

what is a great circle?

Answer 16

any plane that divides earth into equal halves/hemispheres

Question 17

how many great circles are there on the globe? what lines?

what does this mean in terms of passing through places?

Answer 17

infinite (all the meridians of longitude paired with its opposite meridian (half circle+half circle)

can pass through any two places

Question 18

what is the only parallel of latitude that is a great circle?

Answer 18

equator

Question 19

what is a small circle

Answer 19

any circle that doesn’t cut the earth into equal hemispheres and isn’t the shortest distance btw 2 places

Question 20

how does the great circle relate to distance

Answer 20

shortest distance btw 2 places

Question 21

How many km/mi is 1 degree of an angle

Answer 21

111km
69 mi

Question 22

What parallels of latitude are small circles

Answer 22

all except equator

Question 23

which two latitudes are actually points rather than circles

Answer 23

north and south pole

Question 24

in general, which meridians, paired with their opposite meridians, are small circles

Answer 24

none

Question 25

are all meridians halves of great or small circles

Answer 25

great

Question 26

are all paralles, with the exception of equator, great or small circles

Answer 26

small

Question 27

how do you determine the distance along a great circle

Answer 27

1. find the degrees btw 2 places for latitude and longitude (so count degrees from one to another)
2. multiply by 111 km or 69 mi

Question 28

can you find shortest distance btw points that aren’t on the same meridian? why or why not

Answer 28

all meridians of longitude are great circles, but not all great circles are meridians of longitude

Question 29

how do you find shortest distance btw points that aren’t on the same meridian?

Answer 29

1. find the great circle that intersects points and stretch string btw 2 points
2. mark the ends and place string along equator starting at the prime meridian
3. determine length of string in degrees longitude
4. multiply by 69 miles/111 km

Question 30

distance of 1 degree of longitude along a parallel other than the equator will be

Answer 30

less than 111km/69 mi

Question 31

What do you observe about the distance around Earth along each parallel as you get farther from the equator?

Answer 31

decreases

Question 32

Standard time

Answer 32

system that divides the globe into 24 time zones

Question 33

Solar time

when does noon occur, midnight?

Answer 33

measure of time based on the position of the sun

sun at its highest (meridian directly facing sun)
meridian opp of it

Question 34

what direction does earth rotate

Answer 34

west to east

Question 35

what is the mean solar day

Answer 35

24 hrs

Question 36

how many solar minutes is equal to 1 degree of longitude, 15?

Answer 36

4 min
1 hr (60 minutes)

Question 37

east of noon meridian vs west

Answer 37

east: later
west: earlier

Question 38

what are chronometers?

Answer 38

clocks that keeps time of known place that allowed ppl to determine their longitude

Question 39

What does GPS stand for

Answer 39

global positioning system

Question 40

what is the name of the north star

Answer 40

polaris

Question 41

what did early explorers use the angle of the north star to determine?

what if the north star was directly above, at horizon

pattern as angle of polaris increases

Answer 41

latitude in the northern hemisphere

90N, 0

latitude increases