How heat is absorbed?

Answer 1

Physical objects absorb heat when the molecules of which they consist absorb energy and increase their velocity. Molecules are always moving, or vibrating in a lattice structure. They can absorb energy through physical collisions with molecules of another object or medium (air, water), or through direct absorption of radiant energy. In either case, the molecules then increase their velocity and the object of which they are a part are said to become hotter, having absorbed heat.

Answer 2

Heat is absorbed through a process called thermal conduction, where molecules gain energy from a heat source. This causes the molecules to vibrate and move faster, which raises their temperature. Heat can also be absorbed through other methods such as convection and radiation.