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NCERT Solutions for Class 6 Science Chapter 10: Motion and Measurement of distances




In this page we have NCERT Solutions for Class 6 Science Chapter 10: Motion and Measurement of distances. Hope you like them and do not forget to like , social share and comment at the end of the page.
Question 1
Give two examples each, of modes of transport used on land, water and air.
Answer
On Land
Bicycle, Car, Bus, train
On Water
Ship, Motor boat, Ferry
On Air
Aero plane, Glider, Helicopter

Question 2
Fill in the blanks:
(i) One metre is _____ cm.
(ii) Five kilometre is ____ m. (1 Km = 1000m)
(iii) Motion of a child on a swing is ____.
(iv) Motion of the needle of a sewing machine is ___.
(v) Motion of wheel of a bicycle is___.
Answer
  1. 100
  2. 5000
  3. Periodic Motion
  4. Periodic Motion
  5. Circular Motion

Question 3
Why can a pace or a footstep not be used as a standard unit of length?
Answer
A footstep not be used as a standard unit of length because the size of pace and footstep vary from person to person. This will lead to confusion while measuring the lengths by different persons. So We should use standard units like International System of Units (SI Units).

Question 4
Arrange the following lengths in their increasing magnitude:
1 metre, 1 centimetre, 1 kilometre,1 millimetre
Answer
1 millimetre < 1 centimetre < 1 metre < 1 kilometre

Question 5
The height of a person is 1.65 m. Express it into cm and mm.
Answer
As 1m = 100cm and 1cm = 10mm
So, we can say that
$1.65 m = 1.65 \times 100cm = 165cm$
Also, $1.65m = 165cm = 165 \times 10mm = 1650 mm$

Question 6
 The distance between Radha’ s home and her school is 3250 m. Express this distance into km.
Answer
Since $ 1 \; m = \frac {1}{1000} \; km$
So, $3250 \; m = \frac {3250}{1000} = 3.250 \; km$

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 33.1 cm. What is the length of the needle?
Answer
Length of the needle will be given by
= Final reading - Starting Reading
$= 33.1 \; cm - 3.0 \; cm = 30.1 \; cm$

Question 8
Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.
Answer
Similarity
Both ceiling fan and bicycle exhibit circular motion.
Difference
Bicycle shows rectilinear motion while ceiling fan does not.

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?

Answer
Since the tape is stretchable, its measurements will be inaccurate. 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.

Question 10
Give two examples of periodic motion.
Answer
The two examples are Pendulum
Simple Pendulum Oscillator
Child on a swing


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Reference Books for class 6

Practicing make students fluent in their concept. Help your child practice math using our Class 6 Maths worksheets (Kindle Edition)
You can use this ebook on PC, tablet, mobile devices by using Free Kindle Reading Apps for android and ios.
Given below are the links of some of the reference books for class 6 science and class 6 math.

  1. Science Foundation Course For JEE/NEET/NSO/Olympiad - Class 6
  2. Science for Class 6
  3. Mathematics Foundation Course For JEE/IMO/Olympiad - Class 6
  4. Mathematics for class 6 by R S Aggarwal

You can use above books for extra knowledge and practicing different questions.



Class 6 Maths Class 6 Science

Practice Question

Question 1 What is $\frac {1}{2} + \frac {3}{4}$ ?
A)$\frac {5}{4}$
B)$\frac {1}{4}$
C)$1$
D)$\frac {4}{5}$
Question 2 Pinhole camera produces an ?
A)An erect and small image
B)an Inverted and small image
C)An inverted and enlarged image
D)None of the above






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