42 terms

What is the most widely used grid system on Earth?

Geographic Grid

Meridians

Longitude lines that measure 0-180 degrees East or West of the Prime Meridian

Prime Meridian

0 Degree Longitude line that passes through Greenwich, England

Parallels

Latitude lines that measure 0 - 90 degrees north or south of the Equator

Arctic Circle

66.5 degrees North

Antarctic Circle

66.5 degrees South

Tropic of Capricorn

23.5 degrees South & experiences Sun's vertical rays on December 21-22 (WS)

Tropic of Cancer

23.5 degrees North & experiences Sun's vertical rays on June 21-22 (SS)

Equator

0 Degrees N/S & experiences Sun's vertical rays on March 21-22 (SE) and September 22-23 (FE)

Verbal Scale

equates a specific linear distance on the map with a certain ground distance

Linear/ Bar Scale

Consist of a calibrates line/bar which represents ground distances.

Fractional Scale/Representative Fraction

Given as a ratio of a given unit of length on the map to the number of those same unites on the ground. 1:1,000,000 or 1/1,000,000

63,360

inches per mile

Convert RF 1:950,400 to Verbal Scale

1 inch = 15 miles

Convert Verbal Scale 1" = 300 miles to RF

1:19,008,000

Method to convert to RF to Verbal Scale

Divide 63,360 by denominator (right of colon)

Method to convert Verbal Scale to RF

Multiply 63,360 by verbal scale

Linear Distance

distance in feet, miles, kilometers measured along a line between two points.

Angular Distance

(Degrees, Minutes, Seconds) Smallest angle between two points measured across meridians and parrellels

Azimuth System

Directional system using degrees. North - 0/180, East - 90, South - 180, & West - 270

Mariner's Compass

Directional system using compass directions. North, South, East, and West

Which continents does the Tropic of Capricorn pass through?

South America, Africa, and Australia

Which continents does the Tropic of Cancer pass through?

North America, Africa, and Asia

Which continent does the International Date Line pass through?

Antarctia

Statute Mile

5280 feet referred as a "mile".

69 Miles

Distance Between Latitudes

Earth's Circumference

24,900 miles

1 degree

60 minutes or 3,600 seconds

1 minute

60 seconds

Approximately how many STATUTE miles is Miami, Florida, located at 25 degrees N, 80 degrees W, from the South Pole?

7500

8000

8500

9000

7500

8000

8500

9000

8000

At its maximum, east longitude extends how many degrees?

0

23.5

90

180

0

23.5

90

180

180

Calculate the representative fraction when the verbal scale is 1 inch = 25 miles (select closest answer).

1: 1,467,000

1: 1,563,000

1: 1,584,000

1: 1,458,000

1: 1,467,000

1: 1,563,000

1: 1,584,000

1: 1,458,000

1:1,584,000

Calculate the verbal scale when the representative fraction is 1:4,000,000 (round to the nearest 10 mile interval).

1 inch = 50 miles

1 inch = 60 miles

1 inch = 90 miles

1 inch = 100 miles

1 inch = 50 miles

1 inch = 60 miles

1 inch = 90 miles

1 inch = 100 miles

1 inch = 60 miles (True Answer 63.13)

From the North Pole, one degree of latitude extends approximately how many statute miles on the ground?

40

50

60

70

40

50

60

70

70 (True Answer 69)

How many SECONDS of latitude are there between 26 degrees S and 14 degrees N?

135,000

144,000

154,000

169,000

135,000

144,000

154,000

169,000

144,000

The equatorial circumference of Neptune is 96,695 miles. On Neptune, one degree of longitude would be equal to approximately how many statute miles?

377.19

268.59

293.45

318.67

377.19

268.59

293.45

318.67

96,695/360 = 268.59

There are how many degrees of latitude between the Tropic of Capricorn and the Arctic Circle?

23.5

47

90

180

23.5

47

90

180

90 (23.5 + 66.5)

What is the longitude of a point 3/4 of the distance between the Prime Meridian and 60 degrees W as measured in an EASTERLY direction from the Prime Meridian?

147 degrees E

114 degrees S

135 degrees W

167 degrees N

147 degrees E

114 degrees S

135 degrees W

167 degrees N

135 degrees W

(180 + (180-60)) = 300

300* .75) = 225

360 - 225 = 135

(180 + (180-60)) = 300

300* .75) = 225

360 - 225 = 135

What meridian would be OPPOSITE 137 degrees E on a globe?

137 degrees W

43 degrees E

137 degrees E

43 degrees W

137 degrees W

43 degrees E

137 degrees E

43 degrees W

43 degrees W

180- 137

180- 137

When converted to the proper form, 63 degrees, 234 minutes, 99 seconds is equal to:

65 degrees, 24 minutes, 19 seconds

66 degrees, 55 minutes, 39 seconds

66 degrees, 23 minutes, 29 seconds

64 degrees, 14 minutes, 49 seconds

65 degrees, 24 minutes, 19 seconds

66 degrees, 55 minutes, 39 seconds

66 degrees, 23 minutes, 29 seconds

64 degrees, 14 minutes, 49 seconds

66 Degrees, 55 Minutes, 39 Seconds

99 seconds - proper 60 = 39 Seconds

234 + carried over 1 minute = 235

(235/60 = 3.9) (60x3=180)

235-180 = 55 minutes

63 + carried over 3 degrees = 66 Degrees

99 seconds - proper 60 = 39 Seconds

234 + carried over 1 minute = 235

(235/60 = 3.9) (60x3=180)

235-180 = 55 minutes

63 + carried over 3 degrees = 66 Degrees

T or F. 270 degrees on the azimuth system would be the same as west on the Mariner's Compass.

True

T or F. Meridians measure distances east or west of the Prime Meridian.

True