Final answer:
Conduction is the type of heat transfer responsible for making the spoon warm when placed in hot water.
Explanation:
Conduction is the type of heat transfer that causes a spoon to become warm when placed in a cup of hot water. This occurs because heat is transferred through physical contact between the water and the spoon. As the spoon absorbs the heat, its temperature increases.
When hot water comes into contact with the spoon, the heat energy is transferred from the water to the cooler spoon until thermal equilibrium is reached. This process demonstrates the principle of conduction.
Convection and radiation are other forms of heat transfer, but in this scenario, it is conduction that warms the spoon in the cup of hot water.
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