Waves and the EM Spectrum Review

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Waves and the EM Spectrum Review

  1. 1. Waves & the EM Spectrum
  2. 2. <ul><li>1. Wave – a transfer of ________ </li></ul>
  3. 3. <ul><li>2. In a wave, molecules pass energy on to ____________ molecules </li></ul>
  4. 4. <ul><li>3. A material through which a wave travels is a _________. </li></ul><ul><li>It can be solid, liquid, or gas. </li></ul>
  5. 5. <ul><li>4. Do sound waves travel faster through gases or liquids? </li></ul>
  6. 8. <ul><li>5. Try this: Smack your hand down on your desk. It’s pretty loud, huh? </li></ul><ul><li>Now, lay your head down on your desk and smack again. Any louder? WHY? </li></ul>
  7. 9. <ul><li>Not all waves need a medium through which to travel. </li></ul><ul><li>6. What is an example of this </li></ul><ul><li>type of wave? </li></ul>
  8. 11. <ul><li>7. Mechanical waves can only travel through ________. </li></ul>
  9. 12. <ul><li>8. Draw a transverse wave </li></ul>
  10. 13. <ul><li>9. In a transverse wave, the matter in the medium moves __________ to the direction that the wave travels. </li></ul>
  11. 14. <ul><li>10. Draw a longitudinal wave </li></ul>
  12. 15. <ul><li>11. In a longitudinal wave, matter in the medium moves ___________ that the wave travels. </li></ul>
  13. 16. <ul><li>12. Label the crest, trough, & rest position of the transverse wave. </li></ul>
  14. 17. <ul><li>13. Label the amplitude and wavelength of the transverse wave. </li></ul>
  15. 18. <ul><li>14. Label the compression, rarefaction, and wavelength of </li></ul><ul><li>the longitudinal wave. </li></ul>
  16. 19. <ul><li>15. As frequency increases, wavelength __________. </li></ul>
  17. 20. <ul><li>16. What is the number of waves </li></ul><ul><li>that pass a certain point </li></ul><ul><li>in one second called? </li></ul>
  18. 21. <ul><li>vs. </li></ul>
  19. 22. <ul><li>17. So the more energy a wave carries, the _________ </li></ul><ul><li>the amplitude. </li></ul>
  20. 23. <ul><li>18. ______ occurs when </li></ul><ul><li>a wave strikes an object and </li></ul><ul><li>bounces off of it. </li></ul>
  21. 31. <ul><li>19. ______ is the bending of a wave </li></ul><ul><li>caused by a change in its speed. </li></ul>
  22. 34. <ul><li>20. ______ is when an object causes </li></ul><ul><li>a wave to change direction </li></ul><ul><li>and bend around it. </li></ul>
  23. 39. <ul><li>21. ______ waves are produced by an oscillating electric charge. </li></ul>
  24. 41. <ul><li>And now, </li></ul><ul><li>a word from our sponsors. . . </li></ul>
  25. 42. <ul><li>22. As frequency of EM wave decreases, its energy __________. </li></ul>
  26. 45. <ul><li>23. Which EM waves have </li></ul><ul><li>the longest wavelength? </li></ul>
  27. 48. <ul><li>Microwaves </li></ul>
  28. 50. <ul><li>Infrared </li></ul>
  29. 57. <ul><li>24. What range of the EM spectrum can we detect with our eyes? </li></ul>
  30. 58. <ul><li>Visible light </li></ul>
  31. 61. <ul><li>Ultraviolet </li></ul>
  32. 67. <ul><li>X-ray </li></ul>
  33. 70. <ul><li>Gamma </li></ul>
  34. 71. <ul><li>25. Gamma radiation </li></ul><ul><li>kills _________. </li></ul>
  35. 76. <ul><li>26. Which region of the EM spectrum </li></ul><ul><li>travels the fastest? </li></ul>
  36. 77. <ul><li>27. Which region of the EM spectrum has the highest frequency? </li></ul>
  37. 78. <ul><li>28. Which region of the EM spectrum has the longest wavelength? </li></ul>
  38. 79. <ul><li>Helpful reminders for the test: </li></ul><ul><li>Differences b/w experimental variables (Ind, Dep, Constant, Control) </li></ul><ul><li>Understand velocity & acceleration </li></ul><ul><li>Newton’s 3 Laws of Motion </li></ul><ul><li>Plotting Ind. & Dep. Variables </li></ul><ul><li>Energy </li></ul>
  39. 80. The End

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