Q3 of 10 Page 106

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

A pace or a footstep cannot be used a standard unit of length as length of footstep or hand span of different person is different. Thus, the measurement will not be the same for different people.


More from this chapter

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1

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

 2

Fill in the blanks:


i. One meter is ____ cm.


ii. Five kilometers 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 ___.

 4

Arrange the following lengths in their increasing magnitude:


1 meter, 1 centimeter, 1 kilometer, 1 millimeter.

 5

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