Question

what happens during radiation?
heat is transferred from warmer objects to cooler objects by moving fluids.
heat is transferred from warmer objects to cooler objects by direct contact.
heat is transferred from warmer objects to cooler objects without touching.

Explanation:

Radiation is a form of heat transfer that does not require a medium (like direct contact or moving fluids). It occurs via electromagnetic waves. The first option describes convection (moving fluids), the second describes conduction (direct contact). The third option correctly describes radiation as heat transfer from warmer to cooler objects without touching.

Answer:

Heat is transferred from warmer objects to cooler objects without touching.