Answer :
Final answer:
Conduction, convection, and radiation are the three methods of heat transfer. Conduction requires physical contact, convection involves movement of mass, usually within a fluid, and radiation involves the transfer of heat through electromagnetic waves.
Explanation:
Conduction, convection, and radiation are three methods by which energy, specifically thermal energy or heat, can be transferred. In conduction, heat is transferred between two objects in direct physical contact with each other. This takes place when heat moves from a heated stovetop to a pot sitting on it, for example. Convection refers to the transfer of heat by the movement of mass, often in a fluid. This can be seen when hot air rises from a fireplace or in a heated pot of soup, where the warmer fluid rises and cooler fluid descends. Lastly, radiation refers to the transfer of heat through microwaves, infrared radiation, visible light, or other electromagnetic waves, such as the warming of the earth by the sun or thermal radiation from the human body. It’s important to note that these three methods can all occur simultaneously.
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