DEFINITION
Temperature is a physical quantity that expresses the degree of hotness or coldness of an object or environment. It is fundamentally defined as a measure of the average kinetic energy of the particles in a substance. As temperature increases, the motion of these particles becomes more vigorous, indicating higher thermal energy within the system.
Temperature can be measured using various scales, with the most common being Celsius (°C), Fahrenheit (°F), and Kelvin (K). Each scale has defined reference points such as the freezing and boiling points of water that facilitate conversions between them.
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