Unit 8 Vocab

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Across
  1. 2. a device which transfers heat from one medium to another
  2. 4. Boiling water, sea/land breezes, convection ovens
  3. 6. All atoms constantly vibrate with a certain energy.
  4. 9. A rod used in nuclear reactors to control the rate of reaction.
  5. 11. Energy per unit mass
  6. 17. Composed of 3 atoms.
  7. 19. Relatively efficient energy, no waste, need large reservoirs, can destroy habitats.
  8. 25. reflected/incoming light
  9. 26. A station where heat energy is converted to electrical energy.
  10. 27. The power of the sun at earth’s surface per square meter.
  11. 30. The minimum delivered or needed electricity in a given time
  12. 31. When something changes velocity because of contact with another moving body
  13. 33. A material used to slow down fast moving particles in a reactor
  14. 34. An object that absorbs all electromagnetic radiation
  15. 35. An imperfect black body that only absorbs some of the electromagnetic spectrum
  16. 36. Amount of energy stored in a system per unit of volume
  17. 37. A number between 0 and 1 to describe how reflective or emmitive any given object is. W = ε σT4 when ε = 1
  18. 42. Totally clean, no fuel needed, inconsistent, inefficient energy generation
  19. 43. A visualization of the flow of electricity in a system.
  20. 44. A movement of position, not rotation
  21. 46. The energy of movement and reaction.
  22. 47. Originating because of human action
  23. 49. When certain greenhouse gasses cause electromagnetic radiation to not be reflected from a surface and heat up an atmosphere
  24. 50. The balance between the incoming energy from the sun and the outgoing energy from the earth.
Down
  1. 1. A panel that utilizes energy from the sun to generate electricity.
  2. 3. Heat diffusing between objects that are touching
  3. 5. Black-body radiation curve peaks differently at different temperatures,
  4. 7. When heat or electricity is transferred through contact.
  5. 8. Replenished faster than it is used
  6. 10. Used faster than it can be replenished.
  7. 12. Electrons that are not bound to an atom
  8. 13. Energy harvested directly from natural resources
  9. 14. The energy of high or pressure, potential for movement
  10. 15. The radiant heat energy emitted from a black body is proportional to the temperature’s fourth power.
  11. 16. carbon dioxide, methane, nitrous oxide, hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs) and ozone
  12. 18. A device that converts sunlight directly to electricity.
  13. 20. A thermal neutron is a free neutron with a kinetic energy of about 0.025 eV
  14. 21. The frequency that an object naturally vibrates at when it is disturbed.
  15. 22. A way to store energy using the potential energy of water.
  16. 23. No waste, relatively efficient, expensive
  17. 24. When energy from natural resources is converted to a transportable form.
  18. 28. Light with a wavelength longer than visible red, mainly emitted by heated objects.
  19. 29. Ancient biomass that has been condensed over time into a dense fuel source.
  20. 32. A cycle of heating and cooling that causes circular motion in a fluid
  21. 38. When matching vibrational frequencies cause each other to amplify.
  22. 39. When heat is released from a radioactive element
  23. 40. When the individual atoms in a molecule shift around in the bonds.
  24. 41. Energy that is released into the environment as waste, usually in the form of heat.
  25. 45. Relatively clean, lots of energy, can be dangerous, nuclear waste.
  26. 48. When molecules of gas rotate. Absorbing light causes a transition in rotational levels.