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CSS Past Papers
Every Day Science 2012 - 3
1.
a material with high elasticity
does not returns to its origional shape upon being stretched and then released
returns as close as possible to its origional shape upon being stretched and then released
can be stretchedto infinite distances
none of these
2.
matter and energy
can be converted from one to the other
when taken together , converted in all processess in a closed system
both a & b
none of these
3.
electric current
flows from a higher potential to lower potential
is caused by flow of electrons
both a & b
none of these
4.
electricity and magnetism are
two facets of same force
always opposed to each other
both a & b
none of these
5.
ball bearing help wheels and other rotating objects
move without consuming any energy
rotate more easily and with less friction
both a & b
none of these
6.
photography works by
capturing the souls of the objects being photographed
capturing light reflected from the object being photographed
both a & b
none of these
7.
arthur c.clarke, the famous science fiction author, while working as a radio operator in the british army in world war-ii
proposed buliding a space elevator from carbon mono-filaments
postulated the existence of extra-terrestrial artifacts on the moon
proposed that a network of satellites in stationary orbit at very high altitudes arounds the earth be used to bounce communication signals all over the world
none of these
8.
the sino pakistani jf-17 thunder aircraft:
is a commercial transport aircraft
is neither built nor assembled in pakistan
has no steath features in its engine inlets or elsewhere
none of these
9.
prokaryotes have which of the following structures?
nucleus
mitochundria
chloroplast
none of these
10.
communication satellites are in
geostationary orbit
geosynchronous orbit
semisynchronous orbit
none of these
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