NCERT Class VI Science Solutions: Chapter 10-Motion and Measurement of Distance Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 7:

While measuring the length of a knitting needle, the reading of the scale at one end is 3.0 cm and at the other end is . What is the length of the needle?


The length of the needle

Question 8:

Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.


Similarity: Both show a circular motion.

Difference: Bicycle shows a rectilinear motion whereas a ceiling fan does not.

This Image Shows Bicycle

Question 9:

Why could you not use an elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape?


Since the tape is stretchable, its will show the same measurements for different lengths. Therefore we cannot use it as measuring tape. While measuring a distance, we need to tell someone how much tape has been stretched which is difficult to measure. It leads to incorrect measurements.

As Showing in Image is a Result for Elastic Measuring Tape

Question 10:

Give two examples of periodic motion.


Rotation of Earth, Pendulum, vibrating wire of guitar, etc.

As Showing in Images is a Periodic Motion

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