Question

Procedure for activity:
Find an inclined plane and roll any ball through its outer surface.
Measure the distance covered by the ball with the help of a measuring tape (you can use thread
and scale)
Measure the time taken to cover the distance using a ​

Answer 1

Answer:

In topographical surveys, you measure distances along straight lines. These lines either join two fixed points or run in one direction starting from one fixed point. They are plotted in the field with pegs, pillars or ranging poles.

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Expressing distances as horizontal measurements

2. You should always measure distances as horizontal distances. You may have to measure on ground which has no slope, or only a very small slope that is less than or equal to 5 percent (see Section 4.0). The distance measured on this type of ground will be equal to or very close to the horizontal distance. When the slope of the terrain is greater than 5 percent, however, you will have to find the horizontal distance. To do this, you must either correct any measurements you made along the ground (see Section 4.0) or use another method of measurement (see following sections). Unlevelled ground also requires particular methods of measurement.

Explanation:

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