Page 47 - Geography for Secondary Schools Student’s Book Form One

Geography for Secondary Schools
Student’s Book Form One
Exercise 3.7

1. Name the two most common great circles and explain their importance on the Earth.
2. Calculate the longitudinal position keep of town H whose time is 10:00 am, when
it is 3:00 pm in Town G whose longitude is 5° W.
3. Calculate the longitudinal position of a town whose local time is 7:00 am while
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GMT is 5:00 pm.

4. Kalunde starts his trip at longitude 0° at 12:00 noon-moving towards town Y at
longitude 45° E. Calculate the time that Kalunde arrives at his destination.

5. If the time in Town Z located at 75°W is 5:00 pm on Friday, calculate the time and
day Town K located at 120° E.

Revision exercise 3

1. ‘The variation in daytime and night-time experienced throughout the day is caused
by rotation of the Earth’. Explain.
2. Describe how movements of the Earth and moon relate in regard to the position of
the sun.
3. What are the effects of perihelion and aphelion on our life?

4. Why all meridians are great circles?
5. Imagine you are at the beach during different times of high and low tide. What
would you observe?
6. Calculate the local time in New York (USA) located at 75° W, when it is 10:00 am
in Lagos, Nigeria located at 15° E.

7. What is the time at 120° E when it is midnight at Greenwich?
8. If it is 4:15 am in a Village A located at 20° E, calculate the local time of a Village
B located along the following longitudes:
(a) 50° E (b) 65° E (c) 75° E (d) 90° E

9. If the time at town A located along the meridian 40° E is 10:00 am, calculate the
time along the following meridians:
(a) 55° W (b) 10° W (c) 60° W (d) 0°

10. If the time of town B located at 120° E is 12:00 (noon), calculate the longitude of
the following recorded times:

(a) 5:30 pm (b) 5:30 am (c) 12:00 noon (d) 3:45 pm

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GEOGRAPHY (F1) TO PRESS.indd 41 18/10/2024 18:32:38