Question about Heat Exchanges: Advanced


Originais Teachy

Heat Exchanges: Advanced


(Originais Teachy 2023) - Question Medium of Physics

Heat exchanges can occur through three main processes: conduction, convection, and radiation. Conduction is the process by which heat flows through direct contact between solid particles, while convection is the process by which heat flows through the movement of hot fluids to cold ones, and radiation is the process by which heat flows through the emission and absorption of electromagnetic waves by bodies without direct contact. Which of the following examples represents convection?
The heating of the Earth when exposed to direct sunlight.
The cooling of air inside an frequently opened freezer.
The formation of ice when water is cooled below room temperature.
The heating of water in a container when placed over a lit flame.
The formation of fog when there is a large temperature variation between two adjacent layers of the atmosphere.


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