Class 6 Science Lesson 5 Solution (English Medium) – Motion and Measurement of Distances | SEBA Assam

SEBA Class 6 Science (English Medium) Lesson 5 – “Motion and Measurement of Distances” Summary & Solutions

Looking for SEBA Class 6 Science (English Medium) Lesson 5 – “Motion and Measurement of Distances” solutions? At Ospin Academy, we provide detailed NCERT-based textbook answers, multiple-choice questions (MCQs), and a complete chapter summary to help students in Assam prepare for their exams.

📖 Chapter Overview:

Motion and measurement are part of everyday life in Assam, from measuring land for farming to calculating distances for transport. This chapter explains different types of motion and how distances are measured accurately.

• What is Motion? Different types of motion like rectilinear, circular, and periodic motion
• Measuring Distances: Standard units of measurement and their importance
• Examples from Assam: – Measurement of land for farming in rural areas – Distance calculations in river transport (e.g., ferries on the Brahmaputra) – Speed of vehicles on Assam’s roads
• Tools for Measurement: Rulers, measuring tapes, odometers

📌 Key Topics Covered:

• ⭐ What is motion, and what are its types?
• ⭐ Why do we need standard units of measurement?
• ⭐ How are distances measured in Assam’s rural and urban areas?
• ⭐ What is the role of motion in transportation?
• ⭐ How do we measure the length of a curved line?

📝 Why Use Our Solutions?

• ✅ Exam-Oriented Solutions: Fully NCERT-aligned answers for Class 6 Science Lesson 5
• ✅ MCQs & Extra Questions: Prepare better with objective-type questions
• ✅ Concept Clarity: Well-explained answers with examples from Assam to help students relate to real-life applications
• ✅ Quick Revision Notes: Summarized notes for last-minute SEBA exam revision

Start learning SEBA Class 6 Science (English Medium) Lesson 5 – Motion and Measurement of Distances with Ospin Academy’s step-by-step solutions, specially designed for students in Assam!

 

Exercise

1. Give two examples each, of modes of transport used on land, water and air.

Ans: Two examples each, of modes of transport used on land, water and air are:

Land – Bus, train.

Water– boat, ship.

Air – airplane, helicopter.

2. Fill in the Blanks:

(i) One meter is …………..cm.

Ans: 100.

(ii) Five kilometer is ……………m.

Ans: 5000.

(iii) Motion of a child on a swing is ………

Ans: Periodic motion.

(iv) Motion of the needle of a sewing machine is …………….

Ans: Periodic oscillatory circular.

(v) Motion of the wheel of a bicycle is ………….

Ans: circular.

3. Why can a pace or footstep not be used as a standard unit of length?

Ans: Pace or footstep not be used as a standard unit of length because it varies from person to person.

4. Arrange the following lengths in their increasing magnitude:

1 matre, 1 centimeter, 1 kilometer, 1 millimeters

Ans: 1 millimeter, 1 centimeter, 1 mitre, 1 kilometer.

5. The height of a person is 1.65m. Express it into cm and mm.

Ans: 1.65m = 165 cm = 1650 mm.

6. The distance between Radha’s home and her school is 3250m. Express this distance into km.

Ans: 1km = 1000m

 

3250m = 3.25kms

7. While measuring the length of knitting needles, 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?

Ans: Length of needle is

33.1cm – 3.0 cm

 

= 30.1cm.

8. Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.

Ans: Similarity: The blades of a fan and the wheels of a bicycle show circular motion.

Dissimilarity: Bicycle moves forward this executes rectilinear motion but fan does not show such motion.

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?

Ans: An elastic measuring tape will not give accurate measurements.

Reasons:

(i) The main property of an elastic material is its elasticity, where it can stretch when pulled and deform based on the force used during the pull and contraction.

(ii) The length of the elastic tape varies and depends upon the force by which it is stretched.

(iii) Measurement would vary between 2 or 3 readings even when measured by the same person and by the same elastic tape.

10. Give two examples of periodic motion.

Ans: Two examples of periodic motion are:

(i) Oscillations of a pendulum.

(ii) motion of earth around the sun.