#3. Heat Transfer (ARNULFO)

#3. An example of heat transfer with all different forms combine into one photograph

This photo was taken today using my iPhone.

One form of heat transfer is CONDUCTION, transfer of heat occurring at molecular level through contact. Aluminum frying pan is a good conductor of heat. This is why a towel is use in touching the handle of the frying pan because of the high conductivity of heat and the hand might get burn.

Another form of heat transfer is CONVECTION, transfer of heat from one place to another by the movement of fluids and air. Convection is the circular motion that happens when warmer air or liquid which has faster moving molecules, making it less dense rises, while the cooler air or liquid drops down. Convection in a frying pan (boiling of water) over a gas stove.

Last form of heat transfer is RADIATION, transfer of heat energy that is radiated or transmitted in the  form of  heat rays, light rays, and x-rays. The flame in the gas stove that makes the frying pan heat up and boils the water.