heat transfer

conduction
1. A Bunsen burner flame heats the metal spoon
  1. The particles in liquids and gases can move from place to place.
    1. The particles bump into nearby particles and make them vibrate more.
      1. The increased vibrations spread from one atom to the next, eventually increasing the temperature of the whole rod
convection
1. occurs in gases and liquids
  1. The atoms in the rod increase in internal energy
    1. As the hot air above a radiator rises it pushes cooler air away from it
radiation
1. the hotter the object the more radiation it gives off
  1. the hottest parts are coloured white, yellow or red; the coldest parts are coloured purple or black
    1. infrared cameras give images even in the dark, because they are detecting infrared light, not visible light

Resource summary

	Created by Jasmine Ford over 6 years ago