# GSEB Solutions Class 6 Science Chapter 10 Motion and Measurement of Distances

Gujarat Board GSEB Textbook Solutions Class 6 Science Chapter 10 Motion and Measurement of Distances Textbook Questions and Answers, Notes Pdf.

## Gujarat Board Textbook Solutions Class 6 Science Chapter 10 Motion and Measurement of Distances

### Gujarat Board Class 6 Science Motion and Measurement of Distances Textbook Questions and Answers

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

• Land – Bus, truck, train
• Water – Ship, boat
• Air – Aeroplane, Helicopter

Question 2.
Fill in the blanks:

1. One metre is ……….. cm.
2. Five kilometres is ………… m.
3. The motion of a child on a swing is ……….
4. The motion of the needle of a sewing machine is ………….
5. The motion of the wheel of a bicycle is ……….

1. 100
2. 5000
3. periodic (oscillatory) motion
4. periodic oscillatory
5. circular

Question 3.
Why can a pace or a footstep not be used as a standard unit of length?
Because a pace or a footstep of each and every person is not equal.

Question 4.
Arrange the following lengths in their increasing magnitude:
1 metre, 1 centimetre, 1 kilometre, 1 millimetre.
Ascending order of length:
1 millimetre < 1 centimetre < 1 metre < 1 kilometre

Question 5.
The height of a person is 1.65 m. Express it in cm and mm.
(a) 1.65 m, as one metre = 100 cm = 1.65 x 100 cm =165 cm
(b) 1.65 x 100 x 10 mm = 1650 mm.

Question 6.
The distance between Radha’s home and her school is 3250 m. Express this distance in km.
As one km = 1000 m
So, 3250 m = $$\frac {3250}{1000}$$km = 3.250 km
Thus, the distance between Radha’s home and her school is 3.250 km.

Question 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?
Length of the needle = 33.1 cm – 3.0 cm = 30.1 cm.

Question 8.
Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.
1. Similarity: Both the wheel of a bicycle and a ceiling fan exhibit motion on a fixed axis.
2. Dissimilarity: Bicycle moves forward thus executes rectilinear motion but fan rotates on its axis so it shows rotating motion.

Question 9.
Why could 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?
An elastic measuring tape gives an incorrect length of the distance between two points.

Reasons:

• The length of the elastic tape varies and depends upon the force by which it is stretched.
• Measurement would vary between 2 or 3 readings even when measured by the same person and by the same elastic tape.
• Measurement would also vary if different persons measure the same distance.

Question 10.
Give two examples of periodic motion.