Short Q & A :
Q1: Why are conventional symbols used in maps?
Ans : It is the third important component of a map. The maps have to depict a number of features, e.g. buildings, trees, villages etc. It becomes difficult to draw them because of their shape and size. Thus symbols are used to depict various physical features. With the use of these symbols, maps can be drawn easily and are simple to read. There is an international agreement regarding the use of these symbols.
Q2: What do you understand by the scale of the map?
Ans : The scale is the relation between distance on the map and the corresponding distance on the ground, e.g. if the distance on the map and grounds of same two points is 1 cm and 1km receptively, the scale of the map will be 1cm to 1km, R.F= (1:1000000). Scale is very important in any map. If you know the scale, you will be able to calculate the distance between any two places on a map.
Q3: List the three main components of a map.
Ans : 1. Scale 2. Direction 3. Symbol.
Q4: List the ways in which the globes are more useful than maps.
Ans : Globes are preferred more useful than maps because of the reasons given below:
1. It shows the poles, latitudes, longitudes, oceans and continents in their correct shape.
2. There are globes which show various relief features like mountains, plateaus and plains.
3. It also shows distance between the two adjoining meridians which decreases as one goes away from the equator towards the poles.
Q5: Write short notes on a compass.
Ans : A compass is a very simple instrument used to find out the direction of a place. It has a magnetic needle, which rotates freely in a horizontal place and is balanced on a fine point. The magnetic needle always points toward north-south direction.
Q6: Explain the advantages of using maps?
Q7: Explain the Thematic maps.
Ans : Some maps may focus on specific information of the regions, for example rainfall maps, road maps, tourist map and topographical maps. Such maps represent a particular topic or theme and are called thematic maps.
Q8: Why political maps use more number of colours as compared to physical map?
Ans : Political maps, which show more human created features (especially boundaries), usually use more colours than physical maps, which represent the landscape often without regard for human modifications.
Q9: Write about the shortcomings of a globe?
Ans : A globe cannot show as many details as a map can. It does not give details of any country and details like districts, states, town or villages. It is also heavy and difficult to carry around.
Q10: Differentiate between physical map and political map.
|Physical Map||Political Map|
|A physical map is one that shows physical features of the earth like mountains rivers, vegetation, plateaus etc.||Political map shows the different countries and states of the world with their boundaries, cities and towns.|
Q11: Differentiate between a map and a plane.
|1. In the map, details are given in the form of symbols words, lines and colours.||1. Plan is drawn to large scale and shows true direction.|
|2. It shows a large area of ground on a small scale or large scale, i.e. maps reduce the entire world on its parts to fit on a sheet of paper. Maps are precise.||2. It shows detailed layout of spaces, length and breadth in a building etc. Its scale can be enlarged.|
Q12: What is the difference between the magnetic North Pole and geographical North Pole?
Ans : The North Pole (true north) is a geographic pole with a stationary location at 90-degrees north. This geographic North Pole is the fixed northernmost point on earth from which all points lie south.
The Magnetic North Pole is not based on true north, but on the magnetosphere of the planet. The Magnetic North Pole lies hundreds of miles away from the true north, with its exact position constantly shifting.
Q13: How can you measure distance on the map?
Ans : Maps not only help us to locate a place but also help us to find distance between two places in the following ways:
1) Find the scale for the map you are going to use. It might be ruler looking bar scale or a written scale in words or numbers.
2) Use a ruler to measure the distance between the two places. If the line is quite curved, use a string to determine the distance and then measure the string.
3) If the scale is a word statement, i.e., 'One centimeter equals one kilometer’ then determine the distance.
Q14: What is the easiest way to remember compass directions?
Ans : The earth rotates west to east, so the sun rises in the east and sets in the west. No matter which side one is facing, east is the morning sun and west is the evening sun or night time.
Q15: What are the various advantages of globes?
Q16: What are conventional symbols?
Ans : Conventional Symbols are symbols that are used on maps to represent different features.
Q17: Define political maps
Ans : Map which shows cities, towns, villages, different countries and states of the world with their boundaries are called political maps.
Q18: Mention some of the disadvantages of magnetic compass?
Ans : The compass is very stable in areas close to the equator, which is far from "Magnetic North”. At some point close to the Magnetic Pole, the compass will not indicate any particular direction but will begin to drift in a non direction indicating manner. Also, the needle starts to point up or down when getting closer to the poles, due to the so-called magnetic inclination. Cheap compasses with bad bearings may get stuck due to this; therefore, indicate a wrong direction.
Q19: What is a scale? How many types of scales are there?
Ans : A scale is ratio between the distance on the map and the actual distance on the ground. It is of three types:
i) Statement of a scale
ii) Representative Fractions (RF)
iii) Graphical scale
Q20: What do the following colours represents on the map?
Blue, Red, Yellow, Green, Brown and Black
Ans : Blue - lakes, rivers, streams, oceans, reservoirs, etc. Red - major highways, roads, urban areas, airports, special interest sites, military sites, place names, buildings, borders. Yellow - built-up or urban areas. Green - parks, golf courses, forest, orchards, highways. Brown - deserts, historical sites, national parks, military reservations or bases, contour (elevation) lines. Black - railroads, highways, bridges, place names, buildings, borders.
Long Q & A :
Q1: What are the basic characteristics of a good map?
Ans : Maps are the basic tools of geography that enable us to depict spatial phenomenon on paper. A good map will have:
1. Legend: A good map will have a legend or key which shows the user what different symbols mean. For instance, a square with a flag on top usually represents a school and roads are represented by a variety of widths and combinations of lines.
2. Direction: Without a north arrow, it is difficult to determine the orientation of a map. With a north arrow (pointing in the correct direction), a user can determine direction.
3. Title: A map's title provides important clues about the cartographer's intentions and goals.
Q2: Why do we need to understand maps?
Ans : Maps are used:
1. To find our way around a city.
2. To find the location of specific places in a new city.
3. To find the shortest route to a specific spot.
4. To find out locations of petrol pumps, police station and rest house on highways.
5. In case of emergency, it helps to find the nearest hospital or medical aid.