)Define matter. Name the state of matter in which the forces between the
constituent particles are i) strongest ii) weakest
b) Give reasons for the following:
i) A liquid generally flows easily.
ii) Ice at 00C appears colder to the mouth than water at 00C.Why?
iii) Doctors advise to put stripes of wet cloth on the forehead of a person having high
temperature.
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Matter is anything that occupies space and have mass.
(i) Solid
(ii) Gas
(b) (i) A liquid flows because it has very weak inter molecular attraction.
(ii) The Ice is a solid at 0°C but when it is put in the mouth, due to latent heat of fusion, it becomes water.
(iii) When we put the stripe of wet cloth on the forehead of a person having high temperature, there it happens a phenomenon of evaporation. Due to this phenomenon, the temperature decreases.
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