8. Map Scale / 8th Geography/ EXERCISE
Class 8 GEOGRAPHY
9. Map Scale
1. Classify maps showing the following areas into small scale or large scale:
(1) Building (2) School (3) Country of India (4) Church (5) Mall (6) World map (7) Garden (8) Dispensary (9) Maharashtra state (10) The north sky at night.
Answer:
The classification of maps showing the given areas is as follows:
(A) Small scale maps:
• Country of India
• World map
• Maharashtra state
• The north sky at night.
(B) Large scale maps :
• Building
• School
• Church
• Mall
• Garden!
• Dispensary.
2. There are two maps with respective scales of 1cm = 100 m and 1cm = 100 km. Give well reasoned answer as to which of them would be a large scale map and which a small scale map. Recognize the types of maps.
Answer:
A. Out of the two maps with respective scales of 1 cm = 100 m and 1 cm = 100 km, a map with respective scale of 1 cm = 100 m would be a large scale map.
B. Reasons :
• 1 metre is equal to 100 centimetres and 100 metre is equal to 10000 centimetres.
• Thus, the value of the given verbal scale (1cm = 100 m) is 1 : 10000 in numerical terms (scale).
• A map having a numerical scale of 1 : 10,000 or less than it is called large scale map. Therefore, 1cm = 100 m would be a large scale map.
C. Types of maps :
• Maps of villages, church, agricultural fields, etc. are the large scale maps.
• Maps of state, country, continent, world, etc. are the small scale maps.
Q. 2. Using a map of India from the atlas measure straight Line distance between the following cities and complete the table below.
Ans:
Q. (3) (a) The distance between two points A and B on the Ground is 500m. Show this distance on paper by a line of 2cm. Express the map scale by any one method and mention it.
Ans:
(b) Convert verbal scale of 1cm=53km to a
numerical scale
Ans:
• 1 kilometre is equal to 100000 centimetres. Therefore, 53 kilometres is equal to 5300000 centimetres.
• Therefore, the verbal scale of 1 cm = 53 km can be converted to a numerical scale as – 1 : 5300000.
(c) Convert the numerical scale of 1:10,000 000 to a verbal scale in the metric system.
Ans:
• 100000 centimetres is equal to 1 kilometre. Thus, 10000000 centimetres is equal to 100 kilometres.
• Therefore, numerical scale of 1 : 10000000 to a verbal scale in the metric system can be converted as 1 cm = 100 km.
9. Map Scale
1. Classify maps showing the following areas into small scale or large scale:
(1) Building (2) School (3) Country of India (4) Church (5) Mall (6) World map (7) Garden (8) Dispensary (9) Maharashtra state (10) The north sky at night.
Answer:
The classification of maps showing the given areas is as follows:
(A) Small scale maps:
• Country of India
• World map
• Maharashtra state
• The north sky at night.
(B) Large scale maps :
• Building
• School
• Church
• Mall
• Garden!
• Dispensary.
2. There are two maps with respective scales of 1cm = 100 m and 1cm = 100 km. Give well reasoned answer as to which of them would be a large scale map and which a small scale map. Recognize the types of maps.
Answer:
A. Out of the two maps with respective scales of 1 cm = 100 m and 1 cm = 100 km, a map with respective scale of 1 cm = 100 m would be a large scale map.
B. Reasons :
• 1 metre is equal to 100 centimetres and 100 metre is equal to 10000 centimetres.
• Thus, the value of the given verbal scale (1cm = 100 m) is 1 : 10000 in numerical terms (scale).
• A map having a numerical scale of 1 : 10,000 or less than it is called large scale map. Therefore, 1cm = 100 m would be a large scale map.
C. Types of maps :
• Maps of villages, church, agricultural fields, etc. are the large scale maps.
• Maps of state, country, continent, world, etc. are the small scale maps.
Q. 2. Using a map of India from the atlas measure straight Line distance between the following cities and complete the table below.
Q. (3) (a) The distance between two points A and B on the Ground is 500m. Show this distance on paper by a line of 2cm. Express the map scale by any one method and mention it.
Ans:
(b) Convert verbal scale of 1cm=53km to a
numerical scale
Ans:
• 1 kilometre is equal to 100000 centimetres. Therefore, 53 kilometres is equal to 5300000 centimetres.
• Therefore, the verbal scale of 1 cm = 53 km can be converted to a numerical scale as – 1 : 5300000.
(c) Convert the numerical scale of 1:10,000 000 to a verbal scale in the metric system.
Ans:
• 100000 centimetres is equal to 1 kilometre. Thus, 10000000 centimetres is equal to 100 kilometres.
• Therefore, numerical scale of 1 : 10000000 to a verbal scale in the metric system can be converted as 1 cm = 100 km.
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