Lämpö
Lämpö is the form of energy that is transferred between objects due to a difference in temperature. In physics, heat is energy in transit, not a property that a system holds on its own. When two bodies have different temperatures, energy flows from the hotter to the cooler one until thermal equilibrium is reached.
The SI unit of energy is the joule. Heat transferred is typically measured in joules or kilojoules;
Heat can be transferred by three mechanisms: conduction, where energy passes through a material or between
In many contexts, heat is described as sensible heat, which changes the temperature of a substance according
Lämpö is central to practical concerns such as heating and cooling in buildings, thermal insulation, and energy