Conduction involves the transfer of electric charge or ________.

Conduction involves the transfer of electric charge or ________.

• A. electric charge
• B. thermal energy
• C. mass
• D. momentum

Answer: (B)

Conduction is a way energy moves through a material by direct contact. It can involve the flow of electric charge (as in electrical conduction) or the transfer of thermal energy from regions of higher temperature to regions of lower temperature. The blank is thermal energy because heat conduction describes how heat is transferred within a substance or between touching objects due to temperature differences. In metals, free electrons rapidly shuttle energy by collisions, while in insulators, energy is mainly carried by atomic vibrations (phonons). Mass or momentum aren’t the primary carriers of heat in conduction, and while electric charge can conduct, that describes electrical conduction rather than thermal conduction.

Conduction is a way energy moves through a material by direct contact. It can involve the flow of electric charge (as in electrical conduction) or the transfer of thermal energy from regions of higher temperature to regions of lower temperature. The blank is thermal energy because heat conduction describes how heat is transferred within a substance or between touching objects due to temperature differences. In metals, free electrons rapidly shuttle energy by collisions, while in insulators, energy is mainly carried by atomic vibrations (phonons). Mass or momentum aren’t the primary carriers of heat in conduction, and while electric charge can conduct, that describes electrical conduction rather than thermal conduction.