Chapter 6: Changing Forms of Energy

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Across
  1. 2. A form of energy that travels outward in all directions until it strikes something. It can travel through space
  2. 7. This word describes materials that do not let any light pass through them
  3. 9. The bounce of light waves when they encounter an obstacle
  4. 11. When something gets separated out or spread out
  5. 15. This word describes materials that let some light pass through them
  6. 17. The back-and-forth motion of an object
  7. 18. The loudness of a sound
  8. 19. A substance such as wood, metal, or air
Down
  1. 1. The bending of light waves as they pass from one medium to another
  2. 3. Energy that is not causing any changes now but could cause changes in the future
  3. 4. This word describes materials that let nearly all light pass through them
  4. 5. The energy that is due to motion
  5. 6. The highness or lowness of a sound
  6. 8. The ability to do work or cause a change
  7. 10. A sound heard again near its source after being reflected
  8. 12. A form of energy that behaves in a predictable way. It is a wave of vibrations that spreads from its source
  9. 13. A measure of how often particles are vibrating
  10. 14. A metal device that produces a particular note when it is hit, and that is used to tune musical instruments
  11. 16. This object will separate light into the colors of the spectrum