17 July 2014

Mr Suria's question





Group's answer



Personal answer

Think 1

When we enter the air conditioned room , the surrounding air is has a lower temperature than our body temperature . So as thermal energy travels from the hotter region to the colder region , our hotter body temperature was lost to the colder surrounding air . Thus , we feel colder .

Think 2

When we came out of the swimming pool ,  our body was wet due to the water droplets , thus colder than the surrounding  air . As thermal energy travels from the hotter region to the colder region , the colder water droplets on our body gains heat from our body and the surrounding air and evaporate , thus we shiver to shake off some water droplets , thus transfer less thermal energy to the water droplets from the body in order to feel warm .