Question

types of heat transfer
conduction
convection
radiation
identify the type of heat transfer that takes place in each illustration:

Explanation:

Conduction is heat transfer through direct contact, like a pan on a stove heating food. Convection involves heat transfer through the movement of fluids (liquids or gases), such as boiling water or air - flow from a hairdryer. Radiation is heat transfer through electromagnetic waves, like the sun heating the Earth or a toaster heating bread without direct contact or fluid movement.

Answer:

1. Conduction: Heat transfer through direct contact of the pan and the fish.
2. Radiation: Similar to X - rays (electromagnetic wave - based heat transfer in this context).
3. Convection: Air movement from the hairdryer to dry hair (fluid movement for heat transfer).
4. Convection: Boiling water in the pot (fluid movement).
5. Convection: Steam rising from the kettle (fluid movement).
6. Radiation: Sun emits heat as electromagnetic waves.
7. Radiation: Toaster uses electromagnetic waves to heat bread.
8. Conduction: Iron directly touches the cloth to transfer heat.
9. Conduction: Cup of coffee cools down as heat is transferred to the surrounding air by direct contact.