Question

1. direction: categorize each of the following under conduction, convection, or radiation.

heat from the sun; heating pan, touching a hot seat belt when you get into a car; hot oven; boiling water; blood circulation in warm – blood mammals; a blacksmith heating up a sword.

conduction\tconvection\tradiation
\t\t
\t\t
\t\t

Explanation:

• Conduction: Heat transfer through direct contact.
• Heating pan: Heat from the stove burner is transferred to the pan through direct contact.
• Touching a hot seat belt when you get into a car: Heat is transferred from the hot seat belt to your hand through direct contact.
• A blacksmith heating up a sword: Heat is transferred from the forge to the sword through direct contact.
• Convection: Heat transfer through the movement of fluids (liquids or gases).
• Boiling water: The movement of water molecules (a fluid) transfers heat.
• Blood circulation in warm - blood mammals: Blood (a fluid) circulates to transfer heat throughout the body.
• Radiation: Heat transfer through electromagnetic waves.
• Heat from the sun: Heat is transferred from the sun to the Earth through electromagnetic waves (radiation).
• Hot oven: Heat is transferred from the heating elements inside the oven to the food (or the air inside the oven) through radiation.

Answer:

Conduction	Convection	Radiation