Respuesta :
Radiation excites the motions of water molecules in the food, raising their total kinetic energy best describes that a microwave transfers heat to leftover mashed potatoes.
Answer:
radiation excites the motions of water molecules in the food, raising their total kinetic energy
Explanation:
Microwave is an electromagnetic radiation that conducts heat by radiation. Microwaves heat up the water molecules which then heats up the surrounding food. Microwaves cook food inside out. As the microwaves are transferred by radiation it increases the vibration of the water molecules, which is turn creates friction between the water molecules causing them to release heat to the immediate surrounding thus heating up or cooking the nearby food particles.