Question 1 :
Four children measure the length of a table which was about 2m. Each of them used different ways to measure it. (i) Sam measured it with a half metre long thread. (ii) Gurmeet measured it with a 15 cm scale from her geometry box. (iii) Reena measured it using her hand span. (iv) Salim measured it using a 5 m long measuring tape. Which one of them would get the most accurate length?

Question 2 :
Fill in the blanks: Motion of an object or a part of it around a fixed point is known as _______ motion.

Question 3 :
Can you measure the length of a curved line using metre scale ?

Question 4 :
Three students measured the length of a corridor and reported their measurements. The values of their measurements were different. What could be the reason for difference in their measurements?

Question 5 :
Boojho was riding in his bicycle along a straight road. He classified the motion of various parts of the bicycle as (i) rectilinear motion, (ii) circular motion and (iii) both rectilinear as well as circular motion. Can you list one part of the bicycle for both rectilinear and circular motion.

Question 7 :
Can you measure the girth of a tree or the size of your chest using a measuring tape ?

Question 8 :
Fill in the blank: Motion of a child on a swing is an example of ____.

Question 9 :
State whether True or False: Measurement means the comparison of an unknown quantity with a known quantity.

Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6cef59b460d7261e62f.PNG' /> In the above figure, Bholu and Golu are playing in a ground. They start running from the same point A in the ground and reach point B at the same time by following the paths marked 1 and 2 respectively. As compared to Golu, Bholu covers a longer distance but with a lower speed. State TRUE or FALSE ?

Question 12 :
Fill in the blank: In 1790, the French created a standard unit of measurement called the _______ system.

Question 13 :
Fill in the blank: People measured a ______ of cloth by the distance between the end of the outstretched arm and their chin.

Question 14 :
Fill in the blank: Motion of the needle of a sewing machine is ____.

Question 15 :
Fill in the blank: The type of motion in which the object moves along a straight line is called ________.