Question

what is mean by heat ?​

Answer 1

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Heat:-

• Heat is an invisible form of energy that can produce the sensation of hotness or coldness.
• It's unit in S.I system is Joule (J) and Calorie (Cal) in C.G.S.
• It always flows from body at high temperature to body at low temperature.
• Heat is a form of energy.
• Heat energy is transformed to other forms of energy like electrical, mechanical, etc.
• It is measured by an instrument called Calorimeter.

Answer 2

Answer:

heat, energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder