Temperature, Heat, Expansion
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 (The Sun, the main source of heat on Earth.) Temperature Temperature is a physical quantity measured using a thermometer and studied in thermometry. In everyday life, it is connected to the sensations of cold and heat, coming from the heat … Read More

Heat
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A thermal transfer, more commonly called heat, is one of the modes of heat energy exchange between two systems. This is a fundamental notion of thermodynamics. Unlike work, heat is a disorderly microscopic energy transfer. There are three types of … Read More