What energy is transferred from a warmer object to a cooler object?

• A. Heat/Thermal Energy
• B. Electrical Energy
• C. Mechanical Energy
• D. Light Energy

Answer: (A)

Heat is energy transferred between objects because of a temperature difference. When one object is warmer, its molecules have more energy and energy flows toward the cooler object until both reach the same temperature. This transfer is what we call heat or thermal energy transfer, and it can happen by contact (conduction), by moving fluids (convection), or by radiation as infrared radiation from the warm object. Electrical energy involves charges and their motion, not the transfer due to temperature difference. Mechanical energy is about motion or position of an object, and light energy refers to electromagnetic radiation, not specifically the heat flow between objects.