which of these actions would decrease heat transfer between two objects?\n○ increasing the temperature of…

which of these actions would decrease heat transfer between two objects?\n○ increasing the temperature of the warmer object\n○ increasing the area of their contact\n○ reducing the thermal energy of the cooler object\n○ reducing the time of their contact

which of these actions would decrease heat transfer between two objects?\n○ increasing the temperature of the warmer object\n○ increasing the area of their contact\n○ reducing the thermal energy of the cooler object\n○ reducing the time of their contact

Answer

Brief Explanations:

To determine which action decreases heat transfer, we analyze each option:

  • Increasing the warmer object’s temperature increases the temperature difference, increasing heat transfer.
  • Increasing contact area provides more surface for heat exchange, increasing heat transfer.
  • Reducing the cooler object’s thermal energy (or temperature) decreases the temperature difference, but this is not a practical "action" to decrease heat transfer (heat transfer depends on the difference, and reducing the cooler object’s energy is not a typical control method).
  • Reducing contact time limits the duration heat can be transferred, thus decreasing the total heat transferred.

Answer:

reducing the time of their contact