NCERT Solutions for Class 6 Science Chapter 10 Motion and Measurement of Distances

NCERT Solutions for Class 6 Science Chapter 10 Motion and Measurement of Distances guides you in your CBSE Class 6 exam preparation. This study material has a detailed answer to all the exercise questions provided in the NCERT textbook, which will help you in clearing all your doubts.

These NCERT Solutions will assist you in clearing the concepts which are very important to understand the advanced topics in your future studies. In order to score good marks, students are advised to study the answers thoroughly.

The NCERT Solutions for Class 6 Science Chapter 10 has questions and answers on different modes of transport used to go from one place to another, measurement, SI units of measurement, the concept of metre, motion in a straight line, rectilinear motion, circular motion and periodic motion.

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Exercise Questions

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

Solution:

Land- Train, Bus

Water- Ship, Boat

Air- Helicopter, Aeroplane

2. Fill in the blanks:

(i) One metre is ______________ cm.

(ii) Five kilometre is ______________ m.

(iii) Motion of a child on a swing is ______________.

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

(v) Motion of wheel of a bicycle is______________.

Solution:

(i) One metre is 100 cm.

(ii) Five kilometre 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 circular.

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

Solution:

Pace or a footstep cannot 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 metre, 1 centimetre, 1 kilometre, 1 millimetre.

Solution:

1 millimetre, 1 centimetre, 1 metre, 1 kilometre

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

Solution:

1.65= 165 cm = 1650 mm

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

Solution:

1km = 1000 m

Hence 3250 m = 3.25 kms

7. 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:

Length of needle = 33.1 – 3 = 30.1 cm

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

Solution:

Similarities – The blades of a fan and the wheels of a bicycle shows circular motion

Differences- Bicycle move in rectilinear motion, but the fan does not move in rectilinear motion.

9. Why would you not like to use a measuring tape made of an elastic material like rubber to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with such a tape?

Solution:

An elastic measuring tape will not give accurate measurement as it stretches in length and reduces in size when stretched. When we express measurement taken with elastic tape, we have to tell whether the tape was stretched. If yes, how much. Hence it is very difficult to tell the measurement taken from an elastic tape.

10. Give two examples of periodic motion.

Solution:

a) A needle of a sewing machine

b) Pendulum

Important topics covered in NCERT Solutions for Class 6 Science Chapter 10 Motion and Measurement of Distances

• story of transport
• how wide is this desk?
• some measurements
• standard units of measurements
• correct measurement of length
• measuring the length of a curved line
• moving things around us
• types of motion

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