What would be the time of the following cities if the time at Prime Meridian is 10 a.m.
Delhi, London, Tokyo, Paris, Cairo, Moscow
|
Delhi |
3:30 p.m. |
|
London |
11:00 a.m. |
|
Tokyo |
7:00 p.m. |
|
Paris |
12:00 Noon |
|
Cairo |
12:00 Noon |
|
Moscow |
1:00 p.m. |
Find out the locations of the following places with the help of your atlas and write their latitudes and longitudes.
|
Place |
Latitude |
Longitude |
|
Mumbai |
|
|
|
Vladivostok |
|
|
|
Cairo |
|
|
|
New York |
|
|
|
Ottawa |
|
|
|
Geneva |
|
|
|
Johannesburg |
|
|
|
Sydney |
|
|
|
Place |
Latitude |
Longitude |
|
Mumbai |
19° 4' N |
72° 52' E |
|
Vladivostok |
43° 10' N |
132° 0' E |
|
Cairo |
30° 2' N |
31° 14' E |
|
New York |
40° 42' N |
74° 0' W |
|
Ottawa |
45° 25' N |
75° 41' W |
|
Geneva |
46° 12' N |
6° 8' E |
|
Johannesburg |
26° 12' S |
28° 2' E |
|
Sydney |
33° 52' S |
151° 12' E |
Distinguish between latitudes and longitudes.
|
Latitude |
Longitude |
|
Run from East-west, parallel to the equator |
Run from North to South |
|
Used to demarcate temperature zones |
Used to determine local time |
|
Lines are parallel to each other |
Lines converge at the poles |
|
The distance between the two latitudes is approximately 111 km |
The distance between the two longitude is maximum at equator, i.e., 111.3 km and minimum at poles , i.e., 0 km. |
|
Latitude measures up to 180 degrees, i.e., 90° N and - 90° S. |
Longitude measures up to 360 degrees |
(i) Which are the two natural points of references on the earth?
(ii) What is a great circle?
(iii) What are coordinates?
(iv) Why does the sun appear to be moving from east to west?
(v) What is meant by local time?
(i) North and South Poles are the two natural points of references on the earth. The spinning of the earth on its axis from west to east provides these two natural points.
(iii) The latitudes and longitudes are commonly referred to as geographical coordinates as they provide systematic network of lines upon which the position of various surface features of the earth, can be represented.
(iv) The sun appear to be moving from east to west because the earth rotates from west to east over its axis and takes 24 hours to complete one rotation.
(v) The time based on the meridian through a specific place, as a city, in contrast to that of the time zone within which the place is located is called local time.
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