Dr. J's Maths.com
Where the techniques of Maths
are explained in simple terms.

Measurement - Time - Comparing locations on Earth's surface.
Test Yourself 1.


 

Comparing latitude or longitude. 1. In the diagram at the left, O is the centre of Earth.

(i) Write down the latitudes of the points P, Q and R.

(ii) What can be noted about the longitude of point P?

Answer.(i) P is 42° N, Q is 35° S and
R is 0° (the equator).
(ii) nothing can be concluded about the longitude of P.
  2. Location A has coordinates (42° N, 24° W). Location B has coordinates (36° S and 116° E).

What are the coordinates of Location C which is half way between locations A and B?

Answer.C is at (3° N, 46° E).
  3. Which of the 4 statements at the right is true about points M and N on this diagram?

(a) The difference in longitude is 70o.

(b) The difference in latitude is 70o.

(c) The difference in longitude is 190o.

(d) The difference in latitude is 190o.

Answer.(c).
  4. An Australian mining company is mining for Rare Earth minerals at Hall's Creek in Western Australia (18.23° S, 127.67° W) and at
La Paz, Arizona (33.9° N, 113.9° W).

Which of these two locations is:

(i) closest to the Equator?

(ii) closest to the Prime (Greenwich) Meridian?

Answer.(i) Hall's Creek.
(ii) La Paz.
  5. Determine the angular difference in latitude between
Ceduna in South Australia (32° S, 133° E) and
Mumbai in India (19° N, 73° E).
Answer.Latitude difference is
32° + 19° = 51°.
Finding coordinates. 6. City A is located at (35°N, 125° E).

City B is located 60° to the east and 40° to the south of City A.

What is the latitude and longitude of City B.

Answer.5° S and 175° W.
  7. (i) Use Google to determine the location (in terms of degrees and minutes) for each of the following towns in Queensland:

(a) Aligator Creek.

(b) Banana.

(c) Dingo Beach.

(d) Moura.

(ii) Rank each of the 4 towns in terms of their position from west to east

(ii) Rank each of the 4 towns in terms of their position from north to south.

Answer.West to East: Aligator Creek, Dingo Beach, Moura, Banana.

North to South: Aligator Creek, Dingo Beach, Banana, Moura.
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