Topic 6 Vocab

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Across
  1. 2. - what is it and how do you calculate it - an expression of the ability of surfaces to reflect sunlight
  2. 7. - movement that changes the position of an object, as opposed to rotation.
  3. 11. (as it applies to molecules) - The act of turning around a centre or an axis
  4. 12. currents - transfer heat from one place to another by mass motion of a fluid such as water, air or molten rock.
  5. 15. - consisting of three atoms.
  6. 16. - the process in which electromagnetic radiation or particles are deflected or diffused.
  7. 20. law - explain in words and mathematically - the total radiant heat power emitted from a surface is proportional to the fourth power of its absolute temperature
  8. 21. gases (most common)
Down
  1. 1. constant - a flux density measuring mean solar electromagnetic radiation (total solar irradiance) per unit area.
  2. 3. - what is it and how do you calculate it - the ratio of the energy radiated from a material's surface to that radiated from a perfect emitter
  3. 4. displacement law - explain in words and mathematically - the black-body radiation curve for different temperatures will peak at different wavelengths that are inversely proportional to the temperature
  4. 5. box radiator - an object that absorbs all electromagnetic radiation that falls on it at all frequencies over all angles of incidence
  5. 6. (as it applies to molecules) - a periodic motion of the atoms of a molecule relative to each other
  6. 8. electrons - an electron within a conducting substance (as a metal) but not permanently attached to any atom
  7. 9. - a type of radiant energy that's invisible to human eyes but that we can feel as heat
  8. 10. vibrations - the oscillatory motion of atoms in a (solid) lattice
  9. 13. frequency - rate that it vibrates naturally when disturbed
  10. 14. of convection currents
  11. 17. - the phenomenon of increased amplitude that occurs when the frequency of an applied periodic force is equal or close to a natural frequency of the system on which it acts
  12. 18. bodies - a physical object that partially absorbs incident electromagnetic radiation
  13. 19. effect - process that occurs when gases in Earth's atmosphere trap the Sun's heat