Thursday, May 30, 2013

Definition Of Temperature And Heat Energy


Heat: Heat is a form of energy that is possessed by all material things. When a hot object cools, it loses heat energy. But it does not lose all its heat; it simply has less heat energy than it had before.

Only at the temperature of absolute zero would an object have no heat energy at all. This temperature cannot be attained in practice, however, and so everything has a certain amount of heat energy, no matter how hot or sold it is.
Temperature: Temperature is a measure of how hot or cold an object is.

Temperatures also indicate how heat will flow when one object is placed in contact with another.

Heat always passes from an object at a higher temperature to one at a lower temperature.

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