NCERT Solutions Class 6 Science Chapter 7 Motion and Measurement of Distance

The seventh chapter of Class 6 Science, "Motion and Measurement of Distance," focuses on the fundamental concepts of measuring distances and understanding different types of motion, such as linear, circular, and periodic motion. Students must understand these concepts in order to develop a solid scientific foundation and do well on tests.

The NCERT solutions for Class 6 of this chapter offer Step-by-step directions for all textbook exercises. These solutions are designed by expert educators to enhance understanding and help students score better through consistent practice and review. You can access the detailed solutions and exercises by downloading the NCERT Solutions Class 6 Science Chapter 7 Motion and Measurement of Distance PDF using the link below.

1.0NCERT Solutions for Class 6 Science Chapter 7 PDF

Students can download class 6 science chapter 7 pdf from the below link and practice it from anywhere anytime.

2.0NCERT Solutions Class 6 Science Chapter 7 Overview

NCERT solutions provide detailed answers to all textbook questions, helping students understand the key concepts of measuring distances and types of motion. In Chapter 7 of Class 6 Science, students learn how to measure distances using both standard and non-standard units, and they explore various motions observed in everyday life.

To simplify the concepts, expert teachers have developed these step-by-step NCERT solutions, which cover all types of questions, including short answers, long answers, and multiple-choice questions. These solutions help students confidently approach the topics and perform well in exams.

Subtopics Under Chapter 7: Motion and Measurement of Distance

The following subtopics are covered in the NCERT Solutions for Class 6 Science Chapter 7:

1. History of Measurement of Distance
2. Standard Units of Measurement
3. Measurement Tools and Techniques
4. Types of Motion: Linear, Circular, and Periodic
5. Relationship Between Motion and Distance

These subtopics are based on the latest NCERT curriculum and provide a comprehensive understanding of the chapter.

3.0NCERT Questions with Solutions Class 6 Science Chapter 7 - Detailed Solution

• Give two examples each of modes of transport used on land, water, and air. Solution Two examples of modes of transport used on land are buses and wheel carts. Two examples of modes of transport used on water are ships and boats. Two examples of modes of transport used in air are aeroplanes and helicopters.
• Fill in the blanks: (i) One metre is cm . (ii) Five kilometres is m. (iii) Motion of a child on a swing is . (iv) Motion of the needle of a sewing machine is _. (v) Motion of the wheel of a bicycle is . Solution (i) One metre is 100 cm . (ii) Five kilometres is 5000 m . $1\mathrm{km}=1000\mathrm{m}$ $5\mathrm{km}=1000\times 5=5000\mathrm{m}$ Hence, the answer is 5000 m . (iii) Motion of a child on a swing is periodic. (iv) Motion of the needle of a sewing machine is periodic. (v) Motion of the wheel of a bicycle is a combination of translational and rotational motion.
• Why can a pace or a footstep not be used as a standard unit of length? Solution The size of the foot varies from person to person. If footsteps of two persons are used to measure the length respectively, then the two distances may not be equal. Thus, a footstep is not a constant quantity. Hence, it cannot be used as a standard unit of length.
• Arrange the following lengths in their increasing magnitude: 1 metre, 1 centimetre, 1 kilometre, 1 millimetre Solution $1\mathrm{cm}=10\mathrm{mm}$ $1\mathrm{m}=100\mathrm{cm}=1000\mathrm{mm}$ Again, $1\mathrm{km}=1000\mathrm{m}=100000\mathrm{cm}$ $=1000000\mathrm{mm}$. Hence, 1 mm is smaller than 1 cm , 1 cm is smaller than 1 m , and 1 m is smaller than 1 km , i.e., 1 millimetre $<1$ centimetre $<1$ metre $<1$ kilometre
• The height of a person is 1.65 m . Express this in cm and mm . Solution Height of the person $=1.65\mathrm{m}$ $1\mathrm{m}=100\mathrm{cm}$ $1.65\mathrm{m}=100\times 1.65=165\mathrm{cm}$ Hence, the height of the person is 165 cm . Again, $1\mathrm{m}=100\mathrm{cm}=1000\mathrm{mm}$ Therefore, $1.65\mathrm{m}=1.65\times 1000=1650\mathrm{mm}$ Hence, the height of the person is 1650 mm .
• The distance between Radha's home and her school is 3250 m . Express this distance in km. Solution The distance between Radha's home and her school is 3250 m . $1\mathrm{km}=1000\mathrm{m}$ i.e., $1000\mathrm{m}=1\mathrm{km}\Rightarrow 1\mathrm{m}=\frac{1}{1000}\mathrm{km}$ $3250\mathrm{m}=\frac{1}{1000}\times 3250=3.25\mathrm{km}$
• 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? Solution The reading at one of end of the scale is 3 cm and at the other end is 33.1 cm . Therefore the length of the needle is (33.1-3.0) cm = 30.1 cm
• Write the similarities and the differences between the motion of a bicycle and a ceiling fan that has been switched on. Solution The similarities between the motion of a bicycle and a ceiling fan are (i) The blades of a fan and the wheels of a bicycle are fixed at a point. (ii) Both have circular motion about their respective fixed points. The differences between the motion of a bicycle and a ceiling fan are (i) A bicycle has linear motion, whereas the blades of a ceiling fan do not have linear motion. (ii) The motion of the blades of a fan is periodic, whereas the motion of a bicycle is rectilinear motion.
• Why can 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? Solution An elastic measuring tape is stretchable. It cannot be used to measure distances because the length of the tape may change on stretching. As a result, the measured length would not be correct. If we measure the length of an object twice using an elastic tape, then we may get different values of the same length each time. This is because elastic tapes are stretchable.
• Give two examples of periodic motion. Solution Two examples of periodic motion are (i) Motion of a pendulum (ii) Motion of the Earth around the Sun.

4.0Benefits of Class 6 Science NCERT Solutions for Exam Preparation

1. NCERT solutions simplify complex concepts, making it simpler for students to understand the basic principles of motion and measurement.
2. Enhance problem-solving abilities, which are important for understanding scientific concepts.
3. Exercises provided in the solutions are according to the latest exam patterns, helping students practice effectively and build confidence.
4. NCERT solutions ensure that students not only understand major concepts but also gain the ability to solve various types of questions easily.

These solutions are an essential resource for thorough preparation and a better grasp of scientific ideas.