Poonam Singh, Satyam and, Dinesh Kumar Solutions for Chapter: Motion and Measurement of Distances, Exercise 6: Chapter Test

How the motions of a wheel of a moving bicycle and a mark on a blade of a moving electric fan are different? 

What precautions should we take to measure a given length?

Explain two type of motion.

Write the method of measuring the length of a curved line using a thread and pins.

Can you differ rest from motion? Comment.

Three people measured the length of a corridor and reported their measurements. The values of their measurements were different. What could be the reasons for their difference?

Shyam was riding in his bicycle along a straight road. He classified the motions of various parts of the bicycle as (a) rectilinear motion (b) circular motion (c) Both rectilinear and circular. Can you list one part of the bicycle for each type of motion? Support your answer with reasons.

Explain correct method of measurement of length.