Identify what radiation has in common with conduction and convection. It can move through empty space, where there are no particlesDirect physical contact between two objectsHeat is transferred upwardsA difference in temperature
Question
Identify what radiation has in common with conduction and convection. It can move through empty space, where there are no particlesDirect physical contact between two objectsHeat is transferred upwardsA difference in temperature
Solution
Radiation, conduction, and convection are all methods of heat transfer. They all require a difference in temperature to facilitate the transfer of heat. In other words, heat always flows from a region of higher temperature to a region of lower temperature in all three methods.
However, there are also differences between these three methods. Conduction and convection require a medium (like a solid, liquid, or gas) to transfer heat, while radiation can move through empty space. Also, in convection, heat is typically transferred upwards due to the movement of heated particles, but this is not the case for conduction and radiation.
So, in summary, the commonality between radiation, conduction, and convection is that they all require a temperature difference to transfer heat.
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