Presentation on theme: "Word of the Day Nautical Mile: One minute of arc length of latitude or longitude at the equator, or 1852m."— Presentation transcript:
1 Word of the DayNautical Mile: One minute of arc length of latitude or longitude at the equator, or 1852m.
2 Chapter 2 - Mapping Our World 2.1 Latitude and Longitude **Lines of Latitude and Longitude are used to locate places on Earth.**Longitude - The distance east or west of the Prime Meridian:The prime meridian = 0º Longitude. It is a vertical line that runs through the Royal Naval Observatory in Greenwich, England.
3 Longitude Lines of Longitude are not parallel. They are semicircles from the North Pole to the South Pole.Degrees Longitude are measured East and West of the Prime Meridian.
4 Degrees of LongitudeDegrees are measurements of distances between lines of longitude.Distance change based on corresponding Latitude.1 Degree longitude at equator = 111km.1 Degree longitude at poles = 0kmLongitude is also divided into Minutes ( ’ ) and Seconds ( ” ).
5 Coordinates:To locate an exact location you need both degrees Latitude and degrees Longitude.A coordinate set: (Latitude, Longitude)In the picture, Charlotte is located at (35º14’N,80º50’W)
6 Time Zones: Objective: Students will be able to add and subtract time. Students will be able to convert local time to Greenwich Mean Time.
7 Time Zones:Because there are 24 hours in a day, there are 24 time zones.Each time zone is 15º Longitude wide.In the U.S. we have 6 time zones.
8 The International Date Line is the transition line for calendar days. It is 180º opposite of the Prime Meridian.If you cross it going west, you advance a day.If you cross it going east, you go back a day.