Final answer:
The transfer of material upon contact is known as thermal contact, which involves heat flow from a warmer object to a cooler one, until equilibrium is reached. Kinetic friction also refers to contact where motion and friction result in energy and material transfer.
Step-by-step explanation:
When two objects are in contact, the transfer of material that can occur is known as thermal contact. This involves transfer of energy by heat when the objects at different temperatures come into direct physical contact with each other. Heat will flow from the warmer substance to the cooler one, and this heat flow continues until thermal equilibrium is reached.
Another type of contact is kinetic friction, which occurs when two surfaces are moving relative to one another. During this contact, energy is transferred through the force of friction, which can also result in the transfer of material at a microscopic level.