What happens when a cold spoon is placed in hot soup?
• The soup's molecules have more potential energy, so they transfer thermal energy to the spoon.
• The spoon's molecules have less kinetic energy, so they transfer thermal energy to the soup.
• The soup's molecules have the same kinetic energy as the spoon's molecules, so there is no transfer of thermal energy.
• The soup's molecules have more kinetic energy, so they transfer thermal energy to the spoon.