# NCERT Class VI Science Solutions: Chapter 10 – Motion and Measurement of Distance Part 4

Question 13:

The photograph given as Fig, shows a section of a grille made up of straight and curved iron bars. How would you measure the length of the bars of this section, so that the payment could be made to the contractor?

The length can be measured using a thread which can be further measured with the help of a scale.

Question 14:

Identify the different types of motion in the following word diagram given as Fig.

1. Lanoitator

2. Rectilinear

3. Periodic

4. Circular

Question 15:

Four children measure the length of a table which was about 2 m. Each of them used different ways to measure it.

1. Sam measured it with a half metre long thread.

2. Gurmeet measured it with a 15 cm scale from her geometry box.

3. Reena measured it using her hand span.

4. Salim measured it using a 5 m long measuring tape.

Which one of them would get the most accurate length? Give reason for your answer.