How do Radiation, Conduction and Convection differ?
Conduction is when energy travels across solids. An example would be when you grab a doorknob and your hand feels colder because the heat is moving from your hand into the doorknob. Convection is when energy travels in moving fluids (gases or liquids). An example is when you boil an egg; the egg doesn’t boil because the pan is hot, it boils because the water is hot. Radiation is when energy travels without the necessity of matter. An example would be sunlight heating the earth– there is not enough matter in space to carry the heat through conduction or convection, but obviously it still reaches us, through radiation.
