In the calorimetry experiment, when a hot copper sample was placed in contact with a cold object, heat transfer occurs. Once both the copper sample and the cold object have the same amount of heat, heat transfer stops. This phenomena is a consequence of:
the Zeroeth Law of Thermodynamics
the First Law of Thermodynamics.
the Second Law of Thermodynamics.
the Third Law of Thermodynamics
the fact that cold objects do not transfer heat energy to hot objects spontaneously.