Chapter-Chapter 5. Measurement of Length and Motion Science Curiosity class 6 in english Medium CBSE Notes

Chapter 5. Measurement of Length and Motion

This assignment is based on the concepts covered in the chapter Measurement of Length and Motion. It includes a variety of competency-based, application-based, and higher-order thinking questions prepared according to the latest CBSE pattern. Students should attempt all questions independently to strengthen their conceptual understanding and improve problem-solving skills.

Assignments - What Have You Learned?

Attempt all the following questions without referring to the textbook. These questions are designed to help you revise the chapter thoroughly and prepare confidently for examinations.

Test Your Learning

Fill in the Blanks

1. The SI unit of length is __________.
2. One metre is equal to __________ centimetres.
3. One kilometre is equal to __________ metres.
4. The position of an object is described with respect to a __________.
5. Motion along a straight line is called __________ motion.
6. The repeated to-and-fro motion of an object is called __________ motion.
7. A motion that repeats after equal intervals of time is called __________ motion.
8. A __________ is used to measure the length of curved objects.
9. Reading a scale from an angle causes __________ error.
10. Body-part measurements are __________ units.

True or False

1. The metre is the SI unit of length.
2. Handspan is a standard unit of measurement.
3. A measuring tape is useful for measuring curved objects.
4. The position of an object can be described without a reference point.
5. A swinging pendulum shows oscillatory motion.
6. The hands of a clock show circular motion.
7. Motion depends on the selected reference point.
8. One centimetre is equal to 100 millimetres.
9. A damaged ruler cannot be used for measurement.
10. Periodic motion repeats after equal intervals of time.

Match the Following

One Word Answer

1. The SI unit of length.
2. The instrument used to measure curved objects.
3. The fixed object used to describe position.
4. Motion along a straight path.
5. The repeated to-and-fro movement of an object.
6. Motion along a circular path.
7. The error caused by reading a scale from an angle.
8. The internationally accepted system of units.
9. A unit equal to one thousand metres.
10. The motion that repeats after equal intervals of time.

Very Short Answer Questions

1. What is measurement?
2. What is the SI unit of length?
3. Name any two measuring instruments.
4. What is a reference point?
5. Define motion.
6. What is meant by rest?
7. Define linear motion.
8. Define circular motion.
9. Define oscillatory motion.
10. What is periodic motion?

Short Answer Questions

1. Why are standard units of measurement necessary?
2. Differentiate between ancient and standard units of measurement.
3. Explain the correct method of measuring the length of an object.
4. How can a damaged ruler still be used to measure length?
5. Describe how to measure the length of a curved line.
6. Differentiate between rest and motion.
7. Explain the importance of a reference point.
8. Differentiate between linear motion and circular motion.
9. Write any four applications of measurement.
10. Explain periodic motion with suitable examples.

Long Answer Questions

1. Explain the importance of measurement in science and everyday life.
2. Describe the different measuring instruments and their uses.
3. Explain the various types of motion with suitable examples.
4. Discuss the importance of standard units of measurement.
5. Explain the concepts of reference point, rest, and motion with examples.

Case Study Based Questions

Case Study: Riya and Mohan were asked to measure the length of their classroom. Riya used a measuring tape, while Mohan measured it using his footsteps. Both obtained different values. Their teacher explained the importance of using standard units and proper measuring instruments.

1. Why did Riya and Mohan obtain different measurements?
2. Which method is more accurate? Give a reason.
3. What is the SI unit of length?
4. Which measuring instrument should be used for measuring the classroom?
5. Why are standard units preferred over body-part measurements?

Competency Based Questions

1. Measure the length and width of your study table using a metre scale and record your observations.
2. Prepare a chart showing different measuring instruments and their uses.
3. Observe five moving objects around you and classify them as linear, circular, or oscillatory motion.
4. Measure the boundary of a circular plate using a thread and a ruler. Explain your method.
5. List five situations where accurate measurement is essential in daily life.

HOTS Questions (Higher Order Thinking Skills)

1. Why would scientific experiments become unreliable if standard units of measurement did not exist?
2. A passenger sitting inside a moving train says that he is at rest, while a person standing on the platform says that the passenger is in motion. Explain how both statements are correct.
3. Why is a measuring tape preferred over a ruler for measuring curved objects?
4. Imagine a world without standard units of measurement. What problems would people face in trade, construction, and science?
5. Many objects around us show more than one type of motion at the same time. Give two examples and explain your answer.

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