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Ncert exemplar Solutions Class 6 Science Motion and Measurement of Distances
Welcome to NCTB Solutions. Here with this post we are going to help 6th class students for the Solutions of NCERT Exemplar Class 6 Science Book, Chapter 10, Motion and Measurement of Distances. Here students can easily find step by step solutions of all the problems for Motion and Measurement of Distances, Also here our Science teacher’s are solved all the questions with easily understandable language with proper guidance so that all the students can understand easily.
Motion and Measurement of Distances all Questions Solution :
Multiple Choice Questions :
Question no – (1)
The distance between Delhi and Mumbai is usually expressed in units of
Answer :
The correct answer is option – (d)
The distance between Delhi and Mumbai is usually expressed in units of kilometre.
Question no – (2)
Which of the following does not express a time interval?
Answer :
The correct answer is option – (d)
Time of the first bell in the school does not express a time interval.
Question no – (3)
Fig. 10.1 shows a measuring scale which is usually supplied with a geometry box. Which of the following distance cannot be measured with this scale by using it only once?
Answer :
The correct option is – (c)
0.2 m cannot be measured with this scale by using it only once.
Question no – (4)
A piece of ribbon folded five times is placed along a 30 cm long measuring scale as shown in Fig. 10.2.
Answer :
The correct answer is alternative – (b)
The length of the ribbon is between 1.25 m – 1.35 m
Question no – (5)
Paheli moves on a straight road from point A to point C. She takes 20 minutes to cover a certain distance AB and 30 minutes to cover the rest of distance BC. She then turns back and takes 30 minutes to cover the distance CB and 20 minutes to cover the rest of the distance to her starting point. She makes 5 rounds on the road the same way. Paheli concludes that he motion is
Answer :
The correct option is – (c)
rectilinear and periodic both.
Question no – (6)
Bholu and Golu are playing in a ground. They start running from the same point A in the ground and reach point B at the same time by following the paths marked 1 and 2 respectively as shown in this photo. Which of the following is/are true for the given situation.
Answer :
The appropriate option is – (c)
As compared to Golu, Bholu covers a shorter distance with a lower speed.
Question no – (7)
Four pieces of wooden sticks A,B,C and D are placed along the length of 30 cm long scale as shown in Fig. 10.4. Which one of them is 3.4 cm in length?
Answer :
The correct answer is option – (c) C
Question no – (8)
Which of the following figure shows the correct placement of a block along a scale for measuring its length?
Answer :
The correct answer is option – (b)
Question no – (9)
You are provided three scales A, B and C as shown in Fig. 10.6 to measure a length of 10 cm
Answer :
The correct answer is option – (d)
Any of the three scales
Very Short Answer Questions :
Question no – (10)
Answer :
(a) The motion of a swing is an example of a periodic motion.
(b) 1 m = 100 cm.
Question no – (11)
Answer :
(a) Motion of an object or a part of it around a fixed point is known as “circular” motion.
(b) A body repeating its motion after certain interval of time is in “Periodic” motion.
(c) In rectilinear motion, object moves “Along a Straight” line
(d) SI unit of length is Metre or m.
Question no – (12)
Answer :
(i) Rectilinear → Running in a straight line.
(ii) Circular → Racing in a circular path.
(iii) Periodic → movement of child playing on a swing.
(iv) Circular and periodic → motion of a rotating fan.
Question no – (13)
Answer :
To measure the length of the bars we could place a thread along the whole body of bars and measure that exact length of the thread with a scale to find the length of the rope.
Question no – (15)
Answer :
Salim would get the most accurate length as he has used a measuring tape so he could measure the table in one go whereas others will have to take multiple measurements and so more chances of error will be there.
Question no – (16)
Answer :
(a) → (ii) Rotational motion
(b) → (i) Circular motion
(c) → (iii) Periodic motion
Long Answer Questions :
Question no – (17)
Answer :
The trees near the track seems to be moving because their position changes with respect to us on the other hand the co- passengers seems to be stationery because their position don’t change with respect to us.
Question no – (18)
Answer :
The wheels of a moving bicycle shows both circular and rectilinear motion besides the mark on a blade of a moving fan shows only circular motion.
Question no – (19)
Answer :
The three reasons for which their measurements could be different are
• Different measurement device could have been used.
• Some of the devices may have been faulty.
• The unit in which they measured may have been different.
Question no – (20)
Answer :
The three cycle body parts with their respective motions are –
• Handle – The handle shows rectilinear motion as it moves in a straight line.
• Pedals – The pedals show circular motion as it moves in a circular motion around its fixed chain system
• Wheels – The wheels show both rectilinear as well as circular motion because it moves forward along with a circular motion.
Next Chapters Solution :
👉 Food : Where Does It Come From?
👉 Sorting Materials and Groups
👉 The Living Organisms and their Surroundings
👉 Light
👉 Water
👉 Garbage in, Garbage out