A blacksmith quenches a horseshoe by dropping the red-hot iron object into a bucket of cold water. How will the blacksmith know that the horseshoe is no longer transferring energy to the water?

Question

A blacksmith quenches a horseshoe by dropping the red-hot iron object into a bucket of cold water. How will the blacksmith know that the horseshoe is no longer transferring energy to the water?
Responses
A	The water will stop steaming.The water will stop steaming.
B	All of the water will boil away.All of the water will boil away.
C	The horseshoe will stop glowing red.The horseshoe will stop glowing red.
D	The temperature of the water will start to drop after climbing.

GPT-4o mini · Answer

The correct response is:

A. The water will stop steaming.

When the red-hot horseshoe is placed in the cold water, it transfers heat (energy) to the water. As the hot horseshoe cools down and the water absorbs heat, the steam produced from the boiling water indicates that heat is still being transferred. Once the horseshoe has cooled sufficiently and is no longer transferring heat to the water, the steam will stop, indicating that the energy transfer has ceased.