MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual...
-
Upload
harold-powell -
Category
Documents
-
view
219 -
download
1
Transcript of MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual...
![Page 1: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/1.jpg)
MAP SCALE
![Page 2: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/2.jpg)
Map Scales
Scale:
Shows the relationship between the distance on a map and the actual distance on the earth’s surface
Ex:1:50,000 means: 1cm on the map = 50 000 cm on the earth
There are 3 different types of scale:1. Direct Statement Scale (1cm = .5 km)2. Line Scale 3. Representative Fraction (1:50,000)
.5 km
1cm
![Page 3: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/3.jpg)
Types of Scales
1. Direct Statement Scale:
Uses words to show the relationship of the scale
1cm to 1km or 1cm=1km
![Page 4: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/4.jpg)
Question???
If you have measured the distance between Hamilton and Toronto and found it to be 25 cm on the map and the direct statement reads 1cm to 2 km.
How far would it be in km?
![Page 5: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/5.jpg)
The answer is….
50 km
1 cm/25cm = 2 km/X1xX = 2x25X-50cm
![Page 6: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/6.jpg)
2. Line Scale:
Is a ruler that is divided into units of
distance
1st measure the distance on the map and 2nd compare it to the scale to calculate the distance
![Page 7: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/7.jpg)
![Page 8: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/8.jpg)
3. Representative Fraction (R.F.):
Is usually shown as a ratio 1:50 000
1 unit on the map represents 50 000 of the same units on the earth’s surface
![Page 9: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/9.jpg)
1: 50 000
The 1st term Is always 1Represents distance on the mapRepresents same unit of measure as the
2nd term
The 2nd term 50 000 represents the distance on the earthRepresents same unit of measure as the
1st term
First term is always 1 (represents the distance on the map)
50 000 represents the distance on the earths surface
Represents the same unit of measurement on both terms of the ratio
![Page 10: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/10.jpg)
Metric Conversions
1 km = 1000m 1 m = 100cm 1km = 100 000 cm
1. Converting R.F. to direct statement - divide by 100 000 (move the decimal 5 places to the left)
Example: 1: 50 000 1cm = 50 000cm 1cm= (50 000/100 000)km 1cm= 0.5km
![Page 11: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/11.jpg)
2. Converting direct statement to R.F. - multiply by 100 000 (move decimal 5 places to the right)
Example: 1cm to 2.5km 1 cm = (2.5 km x 100 000 cm) 1 cm = 250 000 cm (1: 250 000)
![Page 12: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/12.jpg)
Scale Exercise
Direct Statement Representative Fraction
Line Scale
1cm to 2.5 km
1: 350 000
0 40 km
![Page 13: MAP SCALE Map Scales Scale: Shows the relationship between the distance on a map and the actual distance on the earth’s surface Ex:1:50,000 means:](https://reader036.fdocuments.us/reader036/viewer/2022082516/56649d6f5503460f94a5053d/html5/thumbnails/13.jpg)
Applying Scale…
A B - 1cm to 100 km
A
B - 1: 250 000
A 0 20 km
B- 1 cm