In which of these situations is convection most likely the main form of heat transfer?

Question

• An ice cube melts when a person holds it in his hand.
Warm air from a heater on the first floor of a house moves to the upper floors.
• A person gets a sunburn from lying on the beach too long.
The sides of a metal pan become hot when the pan is placed on a stove burner.

Answer 1

Convection is most likely the main form of heat transfer in the situation where warm air from a heater on the first floor of a house moves to the upper floors.