How will heat flow between objects?

A: from the warmer object to the colder object

B: back and forth between objects of equal temperature

C: from the colder object to the warmer object

D: Bfrom the bottom object to the object on top

A. from the warmer object to the colder object

Without an external agent doing work, heat will always flow from a hotter to a cooler object. Two objects of different temperature always interact. There are three different ways for heat to flow from one object to another. They are conduction, convection, and radiation.