Important Questions for CBSE Class 6 Science Chapter 7 - Motion and Measurement of Distances

Very Short Answer Questions                                                              (1 Mark)

1. The earliest mode of transport on the water was

a) Aeroplane 

b) Hovercraft 

c) Bullock cart 

d) Logs tied together

Ans: d) Logs tied together

2. To fly from one place to another we use

a) Aeroplane 

b) Bird 

c) Boats 

d) Batmobile

Ans: a) Aeroplane

3. One of the early measures of distance was

a) Litre 

b) Gram 

c) Paces 

d) Stones

Ans: c) Paces

4. A curved line can be measure using

a) Ruler 

b) string and ruler 

c) measuring cylinder 

d) beaker

Ans: b) String and ruler

5. Hands of the clock show

a) Circular motion 

b) straight motion 

c) Periodic motion 

d) Both a and c

Ans: d) Both a and c

6. Swing shows _______________ motion

a) Circular 

b) Linear 

c) Periodic 

d) none of the above

Ans: c) Periodic 

7. A car moving in a straight line on the road shows _____________ motion.

a) Circular 

b) Linear 

c) Periodic 

d) both a and c

Ans: b) linear 

8. Windmill blades show ___________ motion.

a) Circular 

b) Linear 

c) Periodic 

d) both a and c

Ans: d) Both a and c

9. The yard is a measure of distance between

a) Two hands 

b) the hand and the feet 

c) between the hand and the elbow

d) end of the arm and the chin.

Ans: d) End of the arm and the chin

10. Cubit was a unit of measurement used in

a) Egypt 

b) Ancient India 

c) Rome 

d) Britain

Ans: a) Egypt

11. The fixed quantity of measurement is called

a) Foot 

b) Pound 

c) unit 

d) gallon

Ans: c) unit

12. The system of standard units of measurements is the

a) SI system 

b) fps system 

c) mks system 

d) IUPAC system

Ans: a) SI system

13. The SI unit of length is

a) Millimetre 

b) centimetre 

c)  micrometre 

d)  metre

Ans: c) micrometre

14. \[\mathbf{1}\] metre is equal to

a) \[\mathbf{1000cm}\] 

b) \[\mathbf{1000mm}\]

c) \[\mathbf{100cm}\]

d)  both b and c

Ans: d) Both b and c

15. \[\mathbf{1}\] km is equal to

a) \[\mathbf{1000m}\]

b) \[\mathbf{1000cm}\]

c)  \[\mathbf{1000mm}\]

d)  none of the above

Ans: a) \[\text{1000m}\]

Short Answer Questions                                                                               (3 Marks)

1. Who created the metric system and why?

Ans: In 1790, the French devised the metric system in order to establish a uniform system of measurement. Until then, different people employed various methods. For example, to measure distance, cubits, paces, foot, yards, and other units were used. There was no uniformity in measurement because each item had a different value. Furthermore, the value of each would vary depending on who was measuring. As a result, to assure homogeneity of measurements throughout different countries, regardless of their size and French introduced the metric system to the world.

2. The distance from Meena’s house to the playground is \[20\]paces. If one pace is equal to \[40\,cm\], what is the distance in SI units?

Ans: Given: The distance from Meena’s house to playground \[=\text{ }20\]paces 

$\because 1 pace = 40 cm$

Then, \[20 paces = 20 \times  40\] 

\[\text{= 800 cm}\]

\[\because \text{100 cm = 1 m}\]

Hence, \[\text{800 cm = 8 m}\]

Therefore, the distance from Meena’s house to the playground in SI units is \[\text{8m}\].

3. Keith requires \[5.6\] yards of cloth to get a suit stitched. What length of cloth does he require in metres if \[1\] yard is \[0.9\] metres?

Ans: Given: Keith requires \[5.6\] yards of cloth

\[\because \text{1 yard = 0}\text{.9 m}\]

Then, \[\text{5}\text{.6 yards = 5}\text{.6  }\!\!\times\!\!\text{  0}\text{.9}\]

\[\text{= 5}\text{.04 m}\]

Therefore, Keith requires \[\text{5}\text{.04 m}\]of cloth.

4. The length of the blackboard in Ajay’s class is \[4.5\] cubit. What is its length in SI units if  $ 1\text{cubit}=\text{ }45.72\text{cm} $ ?

Ans: Given: Length of the blackboard in Ajay’s class \[=\text{ }4.5\text{ cubit}\]

\[\because \text{1cubit = 45}\text{.72 cm}\]

Then, length of the blackboard \[=\text{ }4.5\text{ }\times \text{ }45.72\]

\[=\text{ }205.74\text{ cm}\]

\[\because \text{100 cm = 1 m}\]

Now, length of the blackboard \[\text{= }\dfrac{\text{205}\text{.74}}{\text{100}}\]\[\text{= 2}\text{.05 m}\]

Therefore, the length of the blackboard in Ajay’s class in SI units \[\text{= 2}\text{.05 m}\].

5. What were some of the early units of measurement of distances?

Ans: A few of the units of measure were:

Finger widths: The thickness or width of a person's fingers were used to

estimate distance. 

Foot length: Distance measured in terms of the length of afoot. 

Cubit: The distance between the elbow and the tips of the fingers. 

Yard: The distance between the end of an outstretched arm and the

Chin is measured in yards. 

 Pace: a pace's or a step's length 

 Angul/multi/forearm length: Measurement based on the size of the

 relevant body components such as a finger, fist, or forearm.

Long Answer Questions                                                                                (5 Marks)

1. What are the different types of motion? Explain with examples.

Ans: Motions can be divided into three categories:

Rectilinear Motion: 

An object moves in a straight path in this sort of motion.

The object's direction may change from time to time, but it always moves in a straight line.

Examples include a car travelling down a straight road, an aeroplane flying, and a ball rolling on the ground.

Circular Motion:

The object moves in a circular motion in this form of motion.

The object moves, but the distance between it and the origin remains constant. 

For example, clock hands, fan blades, windmill blades, and so on.

Periodic Motion:

In this form of motion, an item moves in a sequential manner.

A similar motion is repeated by the object on a regular basis. 

For example, swing movement, drumming, and so on.

2. Compare rectilinear motion with circular motion.

Ans: Comparisons between rectilinear and circular motion is as given below,

3. Classify the following as circular, periodic or rectilinear motion: Playing a mridangam, Carousel, Swing, Speed boat racing ahead, \[\mathbf{100m}\] dash, Shuttlecock during a game of badminton, weather vane, rocking chair, a penalty kick in a game of football, aeroplane during take-off.

Ans: The classification of the motions is as given below,

Motion and Measurement of Distance: Class 6 Science Chapter 7 Important Questions Summary

As mentioned earlier, this chapter is very crucial for the students of Class 6. By understanding all the concepts of this chapter, they will be able to prepare a foundation of knowledge. This knowledge will then be used to learn the advanced concepts in the higher classes such as motion, acceleration, vector quantities, laws of motion, etc. The Important Questions for Class 6 Science Chapter 7 ensure that the students are on the right track. By answering these questions and referring to their solutions, they will be able to get a good hold of the concepts.

The chapter focuses on defining new scientific terms such as motion, distance, etc. The students will learn when a body is said to be in motion. They will also learn how it is decided that a body is moving when compared to a reference frame. On proceeding further in the chapter, the students of Class 6 will learn about the different means of transport used by modern civilization these days. They will also learn how the locomotives and automobiles evolved from prehistoric cartwheels. The Class 6 Science Chapter 7 Important Questions will also be based on what the students are learning here in this chapter.

In the next segment, the students will learn about how measurement is done. They will be fascinated to know that measurement of small lengths is easier but measuring long distances with bigger units is not that easy. By considering the answers to the NCERT Class 6 Science Chapter 7 Important Questions based on this topic, they will learn how a unit of distance and length is the same and is determined. They will also discover how length and distance are measured following traditional ways.

The next segment will teach students how units are determined and distinguished.   They will also understand why a unit is standardized across the world. The concept of units for measuring any physical quantity will start building from this chapter. The conversion of units into smaller or bigger units will also be taught here. Hence, Motion and Measurement of Distances Class 6 Important Questions are quite important for the students to clear their concepts.

In the next section, students will learn how to measure a length using a scale. There are several errors that they have to avoid while measuring a length with the use of a scale. Those errors will be described well in the chapter. The Important Questions for Class 6 Science Chapter 7 will then be used to define the errors in a better way. Students will also learn how to measure a curved line after mastering the measuring technique of a straight line.

In the next segment, the chapter will introduce the students to motion. They will learn the types of motion and how to explain them. They will also learn how distance and time are important to measure motion.

Benefits of Class 6 Motion and Measurement of Distances Important Questions

• The experts at Vedantu have explained each and every single principle, process, and term efficiently with the help of proper examples and visual elements. Students can solve the questions and learn more about the chapter in the best way.

• After solving the questions, students will also learn more about the concepts such as Parallax, Zero Error Measurements, SI Units of Measurement, and much more.

• There are descriptive and calculative questions provided in the PDF file for the students to practise. This way, they will be aware of what to write during the exams so that they can score high marks and perform well.

• These questions will also help students complete their revision easily after reading the chapter. They can pick out the most important questions and solve them to gain a better understanding.

Why Should You Download Important Questions on Motion and Measurement of Distances?

The reason for downloading these important questions for Class 6 Science Chapter 7 is to gain more knowledge based on distance, measurement, and motion. This chapter is very crucial for the foundational development of the students. This base of knowledge will then be used to learn new related concepts in the advanced classes. The definition of units for measuring a physical quantity will also be introduced in this chapter.

By referring to the important questions, students will also find out what other question formats exist. It will help them to use the concepts well and answer them confidently.

Download Important Questions for Class 6 Science Chapter 7

Get the free PDF version of Class 6 Science Chapter 7 important questions from Vedantu and prepare your strategy for scoring well during the exams. You can rely on these important questions to get the right guidance and support to understand the topics of the chapter completely.

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