The conundrum of heat transfer
Storyboard Text
- Evaporation is the process of the liquid changing into a gas (Vapor).
- An example would be when a puddle evaporates into the air, it takes energy from the heat surrounding it to turn into gas, leaving the floor cool.
- Convection is heat transfer in fluid (Liquid and gases) due to the movement of fluids itself. Convection happens because of density. Hot water has a lower density than cold water so it floats on top of cold water, then as it looses its heat on the outsides, it falls back down and creates a natural circulation called the convection current.
- For example, a hot air balloon. The hot air rises because it is less dense, and makes the hot air balloon rise.
- Convection:
- Evaporative cooling:
- Oh no, I just spilled water everywhere!Ehh, at least it water evaporates at any temperature
- Solids are better conductors than liquids and gases because the particles are closer together in solids
- Conduction is when energy passes through a solid. This happens when particles pass vibrations to one another. Some materials are good conductors. Like metals (Copper is best). Poor conductors called insulators include wood, plastic, glass and rubber.
- Conduction is the main method of heat transfer within a solid. And there has to be a temperature difference for heat transfer.
- Conduction:
- To help us understand his weaknesses
- The heat hook
- In case a villain like him is to appear again, we must know this to defeat them.
- Okay class, so how does learning about heat transfer help us with the villain Heat Hook?
- And to expand our knowledge on one of the greatest villains of all time
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