Question

what type of energy is transferred when substances of two different temperatures come into contact?
potential energy
mechanical energy
kinetic energy
chemical energy

Explanation:

When substances of different temperatures come into contact, heat transfer occurs. Heat is a form of energy transfer. Kinetic energy is related to the motion of particles. In the context of temperature difference, the energy transfer is due to the motion of particles (kinetic energy of particles). Potential energy is stored energy (e.g., due to position), mechanical energy is related to motion and position of macroscopic objects, and chemical energy is stored in chemical bonds.

Answer:

Kinetic energy