Page 18 - Digital Book Bilingual Perpindahan Kalor
P. 18

HAVE YOU EVER? ?
                            HAVE YOU EVER




















                Have you ever touched a metal spoon left in
                       a hot drink and felt it become hot?

                     Have you noticed that water circulates
                                  when it is heated?

                 Or have you felt warmth from the Sun even
                       though there is no direct contact?





















                          All  of  these  phenomena  are  related  to

                          heat  transfer.    In  daily  life,  heat  always
                          flows from a region of higher temperature

                          to      a     region        of     lower        temperature.

                          However,  heat  does  not  move  in  only  one

                          way.









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