Advertisements
Advertisements
Question
Why are ‘True North’ and ‘Grid North’ different?
Advertisements
Solution
Semi-circular lines of longitude are often depicted as straight on maps. The represented north is grid north. The earth’s spherical shape creates a difference from true north.
APPEARS IN
RELATED QUESTIONS
Fill in the blanks. One has been done for you.
| Distance on the map | Distance on the ground | Scale |
| 5 cm | 25 km | 1 cm = 5 km |
| 10 cm | 100 km | ______ |
| 2 cm | ______ | 1 cm = 30 km |
| ______ | 49 m | 1 cm = 7 m |
| 6 cm | 60,000 km | ______ |
Choose the correct answer:
The distance between two points along a straight line can be measured by this method
Choose the correct answer:
In this fraction, the numerator is always 1.
State whether the following is true or false.
The numerator in a Representative Fraction expresses the actual distance between two places on the ground.
State whether the following is true or false.
The distance along a curved line is measured by a ruler.
How is a distance on a map measured by a piece of twine?
With regard to scale, answer the following question:
Convert the following statement into R.F.
25 cm on the map = 5 km on ground.
Convert the following representative fraction into a statement:
1 : 1000000 (to show kilometres).
Convert the following representative fraction into a statement:
1 : 100 (to show metres).
Convert the following representative fraction into a statement:
1 : 200,000 (to show kilometres)
