NCERT Solution for Class 6 Chapter 5 - Measurement of Length and Motion
Have you ever wondered how we get the dimensions of a pencil or how we identify the speed of a vehicle? Class 6 Science Chapter 5-Motion and Measurement of Distances answers all these questions in a very simple and attractive manner. The chapter teaches the students to comprehend the idea of length measurement through measuring instruments that are commonly used in everyday life like the measurement scale or the measuring tape and also presents standard units like different types of meters, centimeters, and kilometers. It is also used to interpret the right method and unit to use according to the item being measured.
This Story also Contains
- NCERT Solutions For Class 6 Science Chapter 5: Exercise Question and Answer
- Measurement of Length and Motion Class 6 Science Chapter 5 - Topics
- Benefits of NCERT Solutions for Class 6 Science Curiosity Chapter 5
- Approach to solve the Class 6 Science Chapter 5
- NCERT Solutions for Class 6 Science: Chapter-wise
Measurement of length and Motion Class 6 NCERT Solutions are very important to enable the students in grasp the basic ideas of science in a very easy and systematic manner. Measurement of length and Motion Class 6 solutions provide stepwise answers to the questions and it would be easy for students to understand concepts such as the unit of measurements, types of movements and practical demonstrations. In line with the CBSE course, the solutions contain key topics, notes and meaningful examples that would make the learning process more effective and interesting. The NCERT Solutions of Class 6 Science Chapter 5, include solutions of the Exercise Questions NCERT book to direct students about the right methods to answer, Important topics and Definitions: to understand and to keep concepts in mind, Key Topics units of measurement, history of transport, and various kinds of motion.
NCERT Solutions For Class 6 Science Chapter 5: Exercise Question and Answer
Measurement of length and motion Class 6 question-answers provide clear and precise answers to each of the questions referring to the latest textbook Curiosity, released within NEP 2020. Such solutions enable the students to learn the main concepts more profoundly, and the exercises of the textbooks can be solved more easily, studying and revising the material before the exams, and deepening their Science knowledge.
Question 1: Some lengths are given in Column I of Table 5.5. Some units are given in Column II. Match the lengths with the units suitable for measuring those lengths.
Table 5.5
Answer :
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Question 2.1: Read the following statements and mark True (T) or False (F) against each.
The motion of a car moving on a straight road is an example of linear motion. [ ]
Answer: True
A car moving straight follows a straight-line path, which is called linear or rectilinear motion.
Question 2.2: Read the following statements and mark True (T) or False (F) against each.
Any object which is changing its position with respect to a reference point with time is said to be in motion. [ ]
Answer: True
When an object changes its position regarding a fixed reference point over time, it is said to be in motion.
Question 2.3: Read the following statements and mark True (T) or False (F) against each.
1 km = 100 cm [ ]
Answer: False
1 km = 1,000 m and 1 m = 100 cm, so 1 km = 1,000 × 100 = 100,000 cm, not 100 cm.
Question 3: Which of the following is not a standard unit of measuring length? (i) millimetre (ii) centimetre (iii) kilometre (iv) handspan
Answer: (iv) handspan
Millimetre, centimetre, and kilometre are all standard metric (SI) units for measuring length. "Handspan" varies from person to person and is not universally accepted as a fixed measurement.
Question 4: Search for the different scales or measuring tapes at your home and school. Find out the smallest value that can be measured using each of these scales. Record your observations in a tabular form.
Answer:
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Question 5: Suppose the distance between your school and home is 1.5 km. Express it in metres.
Answer : ∵ 1 km = 1000 metres
∴ 1.5 km = 1.5 × 1000 = 1500 metres
Question 6: Take a tumbler or a bottle. Measure the length of the curved part of the base of glass or bottle and record it.
Answer: Hint: Use a flexible measuring tape or a piece of string to measure the length of the curved part of the base of the tumbler, then measure the string against a ruler.
Question 7: Measure the height of your friend and express it in (i) metres (ii) centimetres and (iii) millimetres.
Answer: Hint: Measure the height using a metre scale and express it in:
- Metres (e.g., 1.4 m)
- Centimetres (e.g., 140 cm)
- Millimetres (e.g., 1400 mm)
Question 8: You are given a coin. Estimate how many coins are required to be placed one after the other lengthwise, without leaving any gap between them, to cover the whole length of the chosen side of a notebook. Verify your estimate by measuring the same side of the notebook and the size of the coin using a 15-cm scale.
Answer: Hint: Measure the diameter of the coin and the length of the notebook. Divide the length of the notebook by the diameter of the coin to estimate the number of coins required. Say the diameter of the coin is 2 cm and the length of the notebook is 18 cm . Then (18/2)=9cm coins can be placed side to side along the length of the notebook. Verify by placing the coins end-to-end and measuring again.
Question 9: Give two examples each for linear, circular, and oscillatory motion.
Answer:
- Linear motion: A car moving on a straight road, an eraser dropping straight down.
- Circular motion: A merry-go-round, the motion of a whirling stone tied to a thread.
- Oscillatory motion: A swinging pendulum, the motion of a metal strip pressed and released.
Question 10: Observe different objects around you. It is easier to express the lengths of some objects in mm, some in cm and some in m. Make a list of three objects in each category and enter them in Table 5.6.
Table 5.6: Sizes of objects around us
Answer: Classify objects by the convenience of measuring in mm, cm, and m:
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Question 11: A rollercoaster track is made in the shape shown in Fig. 5.19. A ball starts from point A and escapes through point F. Identify the types of motion of the ball on the rollercoaster and corresponding portions of the track.
Answer: Portions of the track and corresponding types of motion:
- A to B: Linear motion
- B to C: Circular motion (loop)
- C to D to E: Circular motion
- E to F: Linear motion
Question 12: Tasneem wants to make a metre scale by herself. She considers the following materials for it—plywood, paper, cloth, stretchable rubber and steel. Which of these should she not use and why?
Answer: Tasneem should not use stretchable rubber because it can change length when stretched, leading to inaccurate measurements. Plywood, cloth, paper, and steel are more suitable as they maintain consistent lengths.
Question 13: Think, design and develop a card game on the conversion of units of length to play with your friends.
Answer: Create cards with different lengths and corresponding units (mm, cm, m, km). Each card can have a length in one unit and players must match it to its equivalent in another unit. For example, a card with “100 cm” would match with “1 m”.
Measurement of Length and Motion Class 6 Science Chapter 5 - Topics
The fifth chapter of Class 6 Science, Measurement of Length and Motion, exposes students to the fundamental ideas of distance measurement and movement of objects. It covers common units of measure, measurements techniques and various forms of movement in an easy and practical manner.
5.1 How do we measure?
Measurement is the relationship between an unknown amount and a known reference value. In everyday life, we measure length by the help of different devices such as scales, measuring tape, or rulers. Hand spans or footsteps used in ancient times were not accurate. In science, a standard procedure is desired. This subject brings forth the accuracy of measurement.
5.2 Standard Units
The standard units are units that are permanently defined to be used by everybody in the world. The standard unit of length is the metre (m). Standard units eliminate confusion and give reliable measurements. Smaller distances are represented using sub-units such as centimetre (cm) and millimetre (mm). This part discusses the reason why a global standard is significant.
5.3 Correct Way of Measuring Length
When we measure, we need to employ the right procedures in order to obtain good results. The scale must be lined along the object and the eye line must be horizontal so as not to cause parallax error. Damaged or imperfect scales must not be used. This section assists the learners in knowing how to measure
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5.4 Measuring the length of a curved line
As opposed to straight lines, curved lines cannot be measured with an ordinary ruler. A strip of thread or a piece of string is drawn on the curve and it is measured on a scale. In this section, a non-linear path measurement using simple tools will be described.
5.5 Describing Position
Position can be defined as the place of an object on the basis of a fixed point or with reference. Many times, we define position in terms of directions or coordinates. In science, position must be described accurately when one wants to observe motion or carry out experiments. This subject prepares the ground, which deals with motion and place.
5.6 Moving Things
In this section, the concept of motion is discussed. Things that appear to shift position with time are referred to as moving. Examples would be cars, pets, or even the hands of a clock. It assists the students in learning the role of movement in human daily lives and its importance to know motion.
5.7 Types of Motion
Different types of motion include rectilinear (straight line), circular as well as periodic motion. A car travelling on the road depicts rectilinear motion and the four-blade fan rotating in a circular motion. Periodic motion takes place after a certain interval and then repeats itself, such as a swinging pendulum. This subject classifies motion in order to develop more knowledge.
Benefits of NCERT Solutions for Class 6 Science Curiosity Chapter 5
1. Proper and Conceptual Answers
The answers to the solutions are well organised, clear and concept-based based and enable the student to understand complicated scientific concepts in an easy manner.
2. In sync with the New NCERT Book Curiosity
These solutions are based on the most recent Class 6 Science textbook, Curiosity, revised for the 2025-26 academic year by NEP 2020, under the National Curriculum Framework.
3. Builds Strong Foundational Understanding
Chapter 5 prepares the foundations of scientific thinking. The solutions also help students to learn relevant concepts using familiar explanations and examples.
4. Useful for Homework and Exam Preparation
These solutions will help the students to have clear confidence in the class assignments, school tests and training on important questions effectively.
5. Encourages Critical Thinking
The solutions are not rote-learning based because they induce the use of thinking and reasoning capabilities as well as the ability to apply knowledge.
6. Simplifies Complex Concepts
Complex ideas are simplified into simpler components using diagrams and step-by-step explanations without making learning tedious or a waste of time.
7. Enhances Self-Study
These solutions are very useful in cases of students who need to revise or prepare without external support, considering it more like a self-help manual.
Approach to solve the Class 6 Science Chapter 5
Initially, read the chapter to grasp some of the main ideas, such as the notion of measurement, standard units (metre, centimetre), and proper methods of measurement instrument usage (ruler). Discover what are the different kinds of motion: rectilinear (straight), circular (round), and periodic (recursive) using real-life examples. Practice measuring objects and avoid parallax error. Solve all NCERT questions and do the suggested activities. Complete all the NCERT problems and perform the indicated tasks. Lastly, solve HOTS questions and sample papers in order to prepare better.
NCERT Solutions for Class 6 Science: Chapter-wise
NCERT Solutions for Class 6: Subject-wise
Also Check NCERT Books and NCERT Syllabus here
Frequently Asked Questions (FAQs)
Q: In what ways do solutions like these fix common unit conversion errors?
A:
They detail unit conversion with examples and give a number of common mistakes. Easy techniques combined with straightforward explanations prevent confusion and appropriately convert
Q: What’s Chapter 5 Class 6 Science Curiosity all about?
A:
Chapter Five, Measurement of length and motion, shows the value of measuring things and quantities exactly. It describes standard units of measurement and instruments used to measure length, mass and time.
Q: In what way NCERT Solutions help us simplify the answering of measurement exam pattern questions?
A:
The answers are provided in a very clear and concise manner which are explained step by step in the same pattern as that of Exam. They assist students in various types of questions and enhance their accuracy and confidence.
Q: Are activity based questions covered in these solutions?
A:
Yes, the solutions provide help to carry out book exercises. They assist in performing observations, measurements, and drawing conclusions from hands on activities.
Q: What would we do in case the zero mark in a ruler is broken?
A:
Begin to measure at some other visible mark (e.g. 1 cm) and deduct this mark at the end reading.
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