Question

a metal spoon is placed into hot soup. soon, the handle becomes hot even though its not touching the soup. how is heat being transferred to the handle? by radiation traveling through empty space by convection currents inside the spoon by increasing the temperature of surrounding air only by conduction through the metal material

Explanation:

Heat transfer in a metal spoon from the part in hot - soup to the handle occurs through conduction. Conduction is the transfer of heat energy through a material by direct contact of atoms or molecules. In a metal, free electrons play a major role in this heat - transfer process. The other options are incorrect as radiation involves heat transfer through electromagnetic waves and is not the main process here, and convection requires a fluid medium in motion which is not applicable for heat transfer within the solid metal spoon. Increasing the temperature of the surrounding air only would not be the main way heat is transferred to the handle from the part in the soup.

Answer:

By conduction through the metal material