Question

When you sit by a campfire, how does its hot air heat you ?

Answer 1

Explanation:

The thermal radiation from the fire spreads out in all directions and is able to reach you. This thermal radiation is mostly in the form of infrared waves and visible light. In contrast, the campfire heat transferred via convection shoots straight up into the sky and never reaches you (i.e. hot air billows upwards)

Answer 2

Hello!

The heat energy from the campfire heats the air around it, thus the hot air reaches us. Actually, this method is known as radiation.

Hope it helps you