Convection is the movement particles, taking their __________ energy with them. Free convection occurs when a __________ (liquid or gas) is heated from below.
When substances are heated (given __________ energy) the particles within it __________ more. The substance will expand taking up more __________, but have the same __________ and so become less __________.
Particles within fluids are able to __________ relative to each other. This allows warm, less __________ fluid to float on top of __________, more __________ fluid. If the fluid is heated from below, then the warm fluid will __________ above the cooler fluid.
The warm fluid loses its thermal energy through __________ and so becomes cooler than the 'new' warmer fluid that is rising below it. The cooling fluid is moved to the side and starts to __________. Once at the heat source again it is heated and the cycle begins again. This flow of fluid is called a convection __________.
A convection __________ can be defined as the flow of a fluid that transfers __________ energy from place to another.
Question: Why don't you grill soup?
Log on to answer this question