NCERT solutions for class 6 science chapter 10:Motin and Measurement of Distances
Explore our comprehensive NCERT Solutions for Class 6 Science Chapter 10: Motion and Measurement of Distances. This chapter introduces students to the concepts of motion, types of motion, and methods of measuring distances. Our detailed answers help clarify these concepts and their practical applications in everyday life. Perfect for exam preparation, our solutions support students in mastering fundamental physics principles.
Exercise Question
Question 1
Give two examples each of modes of transport used on land, water and air.
Answer 1
(i) Land—Bus, car, train, bicycle .
(ii) Water—Ship, boat.
(iii) Air—Aeroplane, Helicopter.
Question 2
Fill in the blanks:
(i) One metre is___________ cm
(ii) Five kilometre is___________ m
(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_____________ .br>
Answer 2
(i) One metre is
) 100 cm.
(ii) Five kilometre is
5000 m
(iii) Motion of a child on a swing is
periodic (oscillatory) motion
(iv) Motion of the needle of a sewing machine is
periodic oscillatory
(v) Motion of wheel of a bicycle is
circular.
Question 3
Why can a pace or a footstep not be used as a standard unit of length?
Answer 3
A pace or a footstep not be used as a standard unit of length because a pace or a footstep of each and every
person is different So,This will lead to error while measuring the lengths.
Question 4
Arrange the following lengths in their increasing magnitude :
1 metre, 1 centimetre, 1 kilometre, 1 millimetre.
Answer 4
Ascending order :
1 millimetre , 1 centimetre ,1 metre , 1 kilometre
Question 5
The height of a person is 1.65 m. Express it in cm and mm.
Answer 5
(a)
we know
one metre = 100 cm
1.65 x 100 cm = 165 cm
(b)
we know
one cm = 10mm
65 x 100 x 10 mm = 1650 mm.
Question 6
The distance between Radha’s home and her school is 3250m. Express this distance in km.
Answer 6
we khnow that
1km=1000m
So 3250m=
3250
/
1000
=3.25km
The distance between Radha’s home and her school is 3.250km
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 7
Length of the needle = 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 8
(i) Similarity: Both the wheel of a bicycle and a ceiling fan exhibit motion on a fixed axis ansd show circular
motion.
(ii) Difference: As Bicycle show both circular and leaner motion so bicycle executes rectilinear motion but fan
does not show such motion.
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 9
An elastic tape can be stretched. It can not be used to measure distances because the tape length can change when
it is stretched. So we need to tell how much taps has been stretched which is difficult. Consequently, the
measured length would not be correct
Question 10
Give two examples of periodic motion.
Answer 10
(i) rocking chair
ii)Rotation of earth.
(iii)a vibrating tuning fork.
Our NCERT Solutions for Class 6 Science Chapter 10 enhance your understanding of motion and measurement techniques. Explore additional chapters and educational resources on our website to further support your science education and academic success