Question

when an ice pack is applied to an injury, thermal energy from the injured area transfers to the ice, causing the blood vessels within the area to constrict, which reduces the swelling. how is thermal energy transferred in this scenario? conduction convection radiation

Explanation:

Conduction is the transfer of thermal energy through direct contact. When an ice pack is applied to an injury, the ice and the injured area (skin, tissues) are in direct contact. Thermal energy moves from the warmer injured area to the colder ice pack via conduction. Convection involves fluid movement (like air or liquid currents) and radiation involves electromagnetic waves (like heat from the sun), neither of which apply here as the transfer is through direct contact.

Answer:

conduction