Heat is the transfer of thermal energy from a hotter object to a colder object. It is a form of energy that can be transferred through conduction, convection, and radiation. Heat causes an increase in temperature and can be measured in units of joules or calories.
Cold, on the other hand, does not technically exist as a form of energy. It is the absence or the reduced presence of heat. When we perceive something as "cold," we are actually experiencing a lack of thermal energy or a lower temperature compared to our own body heat. The sensation of coldness occurs when heat is being transferred from our bodies to the colder object, reducing our skin temperature. Coldness can be subjective as it depends on our personal perception and comfort level.
What is heat? What is cold?
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Heat is the transfer of thermal energy from hot to cold objects. Cold is the absence or reduction of heat.
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