1. (a) What was Aristotle’s basis for believing that the earth was a round sphere?
How was this idea elaborated by Ptolemy?
(b) What was the Nicholas Copernicus’ model of the universe and how was his
theory supported by Kepler and Galileo? [8+8]
2. Who has coined the term ‘cybernetics’ and what does it mean? Explain in detail.
[16]
3. Sketch the character of Datta. [16]
4. C V Raman considers that rain water running into the sea is a great national
problem and should be dealt with accordingly. Discuss the results of a well planned
action to avoid this problem in a country like India. [16]
5. “A very exciting challenge had been thrown to us”. Describe Kalam’s interview
with the Defence Minister and its consequences in the light of this statement.
6. Describe how Joe and Delia find solutions to the problem of their poor financial
resources. Are they successful in finding a way out? [16]
7. Write a report on an industrial accident to be submitted to CMD of a company.
Make use of the following hints:
Title page, Introduction, location, Time, Causes, how it occurred, persons respon-
sible, extent of damage or loss, measures to prevent accidents in future. [16]
8. (a) Fill in the blanks to complete the following sentences. Select one word from
the ones given.
During the tripartite talks between the warring nations many .......... issues
were covered. (Substantial/substantive)
The young singer has great .......... to become a playback artist. (poten-
tiality / potential)
It was not .......... to try to move the table without taking the door off its
hinges. (Practical/ practicable)
Damu has decided to ....... his lunch break in order to complete the report.
(forego / forgo)
(b) Give single word substitutes for the following:
A person who is positive and hopes for the best
A number of people watching a performance
A selfless person who is concerned about the welfare of others
A generous and kind- hearted person who devotes his wealth for others
(c) Provide adjectives for the following nouns
nucleus
fascination
sparkle
ecology
(d) Change the following words into nouns and use them in sentences of your own: