Methods Of heat transfer Poster
نص القصة المصورة
- Convection - The heat transfer caused by the rising of hotter less dense fluids and the falling of cooler, more dense fluids. The tea kettle is a conductor because the metal boils the water up faster.
- Yay! My tea is almost ready! It looks like there is hot steam coming out. That's how I know its working
- Conduction - The transfer of thermal energy that occurs in solids, liquids, and gases when two substances of different temperatures touch. After a period of time the tea is cold but the ceramic mug acts as a conductor in order to keep the tea warm. The window is also a insulator because it keeps the warm air inside the hose from getting out and the cold air from outside from getting in.
- Ow! That's so hot! I think I might have burned my finger. Let me go get some ice.
- Its the middle of winter! I'm trying to stay warm. The warmer air rises and the cooler air sinks. In order for me to stay warm I must go to the highest point.
- Simon what are you doing up there?
- Radiation - The transfer of energy by the movement of electromagnetic waves or subatomic particles. The fridge is an insulator. It keeps cold things cold, for example: ice.
تم إنشاء أكثر من 30 مليون من القصص المصورة