Energy LS4 Witzke

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Across
  1. 2. Light: a form of electromagnetic (EM) radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves.
  2. 5. The change in direction of a wave when it enters a new medium with a different wave speed.
  3. 7. Wave: A transfer of energy through a medium without a transfer of the medium.
  4. 8. A vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.
  5. 9. The number of crests or compressions in a wave that pass a point per unit time; for sound waves, measured in hertz.
  6. 10. Region of a longitudinal wave where the particles of the medium have the highest density.
  7. 14. Spectrum: A continuous range of wavelengths that includes all of the types of electromagnetic waves.
  8. 16. Wave: A wave that causes a medium to vibrate in a direction perpendicular to the direction in which the wave travels.
  9. 18. How high or low a sound is.
  10. 19. Of Wave: The distance a wave travels (crest, trough, crest) in a given period of time. Can be calculated by multiplying wavelength by frequency.
  11. 21. The time required to complete one cycle of a wave.
  12. 24. when you turn up the intensity of light you are increasing the number of photons per second that are emitted by the light source.
  13. 25. The height of the crest in a transverse wave; a measure of how compressed the compressions are in a longitudinal wave.
  14. 26. the amount of space that a substance or object occupies, or that is enclosed within a container: especially when great.
Down
  1. 1. Caused by an earthquake or vibrations inside Earth.
  2. 3. The material through which a mechanical wave travels.
  3. 4. A tiny particle or packet of light energy.
  4. 6. When the medium and energy in a wave is turned back from a hard surface.
  5. 11. Radiant energy that can travel through a vacuum and through matter in the form of waves.
  6. 12. :A disturbance that travels through a medium from one place to another.
  7. 13. The spreading out of energy as it travels away from the source of the energy. The decrease in intensity as distance from an energy source increases.
  8. 15. The ability of a wave to spread out or change direction as it passes through an opening or around an obstruction.
  9. 17. The amount of electricity, light, heat, or sound energy per unit area per unit time.
  10. 20. Wave: A wave that causes a medium to vibrate in a direction parallel to the direction in which the wave travels.
  11. 22. A measurement used to compare the intensity of different sounds. Each increase of 10 decibels is a sound intensity 10 times greater.
  12. 23. Space that contains no matter (Outer space).