Latrosicarius
12th July 2007 - 08:16 PM
There are several kinds of
energy:
- potential
- kinetic
- thermal
- electrical
- chemical
- nuclear
Note
thermal energy. Thermal energy =
heat.
Heat is defined as "the energy transferred from one body or system to another as a result of a difference in temperature"
Heat is not a property. Things cannot "have" heat. Instead they have
temperature. Temperature is the speed at which the molecules move within a body (of solid, liquid, gas, or plasma matter). So only things that have molecules have temperature. Space for instance does not have a temperature of
zero; instead, it can be said that it "has
no temperature", because it has no molecules. And as you may have heard previously, absolute zero is the cessation of all molecular motion within a body or system.
For the same reason that gases always equalize their pressure throughout the entire volume of their container, high-temperatures areas will try to conduct heat energy to lower-temperature areas, until all parts of the system have equal temperatures.
So in a sense, your teacher is correct, that it is the
transfer of energy. But I do not understand your alternative definition "heat is a way of energy". This does not make sense.