Question 2 :
State whether True or False: Measurement means the comparison of an unknown quantity with a known quantity.
Question 3 :
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 4 :
State whether True or False: We can use a thread to measure the length of a curved line.
Question 5 :
The motion of a swing is an example of rectilinear motion. Correct the given statement.
Question 6 :
The distance between Delhi and Mumbai is usually expressed in units of
Question 7 :
Can you measure the girth of a tree or the size of your chest using a metre scale ?
Question 8 :
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 33.1 cm. What is the length of the needle ?
Question 9 :
Which of the following is an example for circular and periodic motion ?
Question 11 :
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 rectilinear motion.
Question 12 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6caf59b460d7261e62a.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 shorter distance with a lower speed. State TRUE or FALSE ?
Question 13 :
The distance between Radha's home and her school is 3250 m. Express this distance into km.
Question 14 :
State whether True or False: Romans measured distance with their pace or steps.
Question 15 :
Fill in the blank: Motion of the needle of a sewing machine is ____.
Question 16 :
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 17 :
What is the name of the standard system of units at present ?
Question 18 :
Fill in the blank: Invention of the _______ made a great change in modes of transport.
Question 19 :
A moving wheel of a sewing machine belongs to which category?
Question 20 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6d0f59b460d7261e632.PNG' />
The above figure shows a piece of ribbon folded five times is placed along a 30 cm long measuring scale. The length of the ribbon is between
Question 21 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6cff59b460d7261e631.PNG' />
The above figure shows a measuring scale which is usually supplied with a geometry box. Which of the following distance cannot be measured with this scale by using it only once?
Question 22 :
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 23 :
Which of the following is an example for periodic motion ?
Question 24 :
Fill in the blank: Motion of wheel of a bicycle is ____.
Question 25 :
The result of a measurement is expressed in how many parts ?
Question 26 :
Fill in the blank: The type of motion in which the object moves along a straight line is called ________.
Question 27 :
Which of the following is an example for circular motion ?
Question 28 :
Which of the following is an example for rectilinear motion ?
Question 29 :
Will the measurements for the room using everybody's foot be equal ?
Question 30 :
Fill in the blank: For transport through water routes, ______ were used from ancient times.
Question 31 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6d3f59b460d7261e635.PNG' />
The above figure shows the correct placement of a block along a scale for measuring its length. State TRUE or FALSE ?
Question 32 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6d2f59b460d7261e634.PNG' />
In the above figure, four pieces of wooden sticks A,B,C and D are placed along the length of 30 cm long scale which one of them is 3.4 cm in length?
Question 33 :
Fill in the blank: In 1790, the French created a standard unit of measurement called the _______ system.
Question 34 :
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 circular motion.
Question 35 :
Fill in the blanks:
Motion of an object or a part of it around a fixed point is known as _______ motion.
Question 36 :
Arrange the following lengths in their increasing magnitude: 1 metre, 1 centimetre, 1 kilometre,1 millimetre.
Question 37 :
Can you measure the girth of a tree or the size of your chest using a measuring tape ?
Question 39 :
Which of the following is an example for rectilinear motion ?
Question 40 :
Is the movement of hands of a clock similar to that of the movement of a train ?
