Chapters 11-14 Review

1. Rhythmic disturbance that carry energy through matter or space.

2. Material through which a wave transfers energy.

3. The medium moves at right angles to the direction that the wave travels.

4. Highest point of a wave

5. lowest point of a wave

6. The distance between the point of 1 wave to the same point on another wave.

7. The distance from the crest (or trough) of the wave to the rest position of the medium.

8. The number of wave crests that pass on place in a second.

9. Hertz (Hz)

10. The matter vibrates in the same direction as the wave travels.

11. Crowded area (when the spring is together)

12. Expanded area (when the spring is apart)

13. Made up of 1 compression and 1 rarefaction

14.Type of medium

Temperature of medium

15. The highness or lowness of a sound.

16. The amount of energy in each wave.

17. The human perception of intensity.

18. Decibels (dB)

19. The tendency of an object to vibrate at the same frequency as another vibrating source.

20. The ability for 2 or more waves to combine and form a new wave.

21. Echoing effect produced by multiple reflections of sound.

22. Transverse waves produced by the motion of electrically charged particles.

23.Radiation24. Radio waves

InfraredVisible LightUltravioletX-raysGamma Rays

*Radio waves include microwaves and cell phones.*

-Increasing frequency -Increasing photons-Decreasing wavelengths

25. Tiny bundles of radiation.

26-31. Know where they are in the electromagnetic spectrum (wavelengths, frequency and photons)

32. When a wave strikes an object and bounces off.

33. The angle of incidence (i) equals the angle of reflection (r).

34. Line drawn perpendicular to the surface of the mirror.

35. Angle of incidence (i)- angle formed from incident beam and the normal.

36. Angle of reflection (r)- angle formed from reflected beam and the normal

37. The bending of waves caused by a change in the speed when it moves from 1 medium to another.

38. The bending of waves around a barrier.

39. Material that absorb or reflect all light so you can’t see through it.

40. Material that allow all light to pass through so you can clearly see through it.

41. Material that allow some light to pass through so you can’t clearly see through it.

42. Red, Orange, Yellow, Green, Blue and Violet….decreasing wavelengths.

43. Because all colors of light are being reflected.

44. Because all colors of light are being absorbed.

45. All the colors of light except the color you see is being absorbed. The color you see is being reflected.

46. Red, Green and Blue

47. White

48. Colored material that absorbs some colors and reflect others.

49. Magenta, Cyan and Yellow

50. Black