Q9 of 20 Page 56

You are provided three scales A, B and C as shown in Fig. 10.6 to measure a length of 10 cm.


For the correct measurement of the length you will use the scale

To measure a distance of 10 cm, the length of undamaged scale should be greater than or equal to 10 cm. All the scales given above are not damaged for less than 12 cm. So all can be used.


More from this chapter

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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?

 8

Which of the following figure shows the correct placement of a block along a scale for measuring its length?

(a)


(b)


(c)


(d)

10

Correct the following.

(i) The motion of a swing is an example of rectilinear motion.


(ii) 1m = 1000 cm

 11

Fill in the blanks

(i) Motion of an object or a part of it around a fixed point is known as ................ motion.


(ii) A body repeating its motion after certain interval of time is in ........... motion.


(iii) In rectilinear motion, object moves........... a ............ line.


(iv) SI unit of length is ............