ii UNITS OF LENGTH, AREA AND VOLUME 33 



tion was it originally meant to bear to the earth's circumference ? 

 How would you define the metric unit of length in common use ? 



3. What advantages do you associate with the use of the metric 

 system ? 



4. Give the multiples and sub-multiples of the unit of length in 

 the British system. How are they related to one another '! 



r>. What names are given to the multiples and sub-multiples of 

 thu metre ? Compare the metre and the yard in terms of one 

 another. 



(5. Compare and contrast the British and metric systems of area 

 and volume. 



7. Explain how the metric units of volume and length are 

 related. Is there any such simple relation in the case of British 

 units ? 



8. Describe an experiment for determining the volume of a solid 

 heavier than water. 



9. How would you proceed to find out the volume of a cork or a 

 deal cube ? 



10. Write down the length of a metre in yards, feet and inches. 

 How many centimetres are there in a metre, and how many milli- 

 metres in a centimetre. 



11. How many millimetres and centimetres are equal to the length 

 of an inch. 



