K.C.S.E Physics Q & A - MODEL 2006PP1QN14

K.C.S.E Physics Q & A - MODEL 2006PP1QN14

​(a) Distinguish between solid and liquid states of matter in terms of intermolecular forces 
(b) In an experiment to estimate the diameter of an oil molecule, an oil drop of diameter 0.05 cm spreads over a circular patch whose diameter is 20 cm
Determine
(i) The volume of the oil drop 
(ii) The area of the patch covered by the oil 
(iii) The diameter of the oil molecule

​(c) State
(i) Any assumption made in (b) (iii) above 
(ii) Two possible sources of errors in this experimen

ANSWER