Waves review sheet Name______Assign#______

1.  Rhythmic disturbances that carry energy through matter or space are called _____.

2. A type of wave in which the medium moves at right angles to the direction of the wave is a __ wave.

3. The ______of a wave is the number of wave crests that pass one place each second.

4. The highest points of a wave are called __.

5. The lowest points of a wave are called __.

6. The ______of a wave is the distance from the crests to the rest position.

7. The ______of a wave is the distance between a point on one wave and the identical point on another wave.

8. As the wavelength increases, the frequency ______--___.

9. In what unit is frequency usually expressed?______

10.  A wave in which matter vibrates in the direction as the wave travels is called a ______wave.

11.  As the temperature of the medium increases, the speed of sound waves ______.

14. True or False: Sound can travel through space.

15. _____ is the highness or lowness of a sound.

16. Waves carry______forward.

17. _____ of a sound wave depends on the amount of energy in each wave.

18. The change in wave frequency due to a moving source is called______

19. The higher the intensity and amplitude of a wave, the ____ the sound.

20. The intensity level of a sound is measured in units called ______.

21. ______is the study of sound.

22. ______is shown when a windowpane vibrates at the same frequency as a thunderclap.

23.  When a sound moves away from you, the sound’s _____ decrease.

24.  ______is the ability of two or more waves to combine and form a new wave.

25.  ______occurs when the compressions of different waves arrive at the same place at the same time and the sound is louder.

26.  The transfer of energy by electromagnetic waves is called _.

27.  Put the following waves in order starting with the wave with the longest wavelength. Then choose the correct order below.

1)X-rays 2) Infrared 3) Am radio waves 4) Visible 5) Microwaves 6) Gamma Rays 7)Ultra-violet

28.  What are tiny, massless bundles of radiation are called?______

29.  Electromagnetic waves are different from other types of waves in that they do not need a _____ to travel.

30.  What happens when light pass through matter?______

31.  The speed of light in a vacuum is ______.

32.  Your body gives off what type of EM waves? ______

33.  A wave has a wavelength of 6m and a velocity of 420m/s. What is the frequency of the wave?______

34.  A wave has a wavelength of 3.2m and a frequency of 0.6Hz. What is the velocity of the wave?______

35.  When you squeeze together the coils of a spring and then release them, you are creating a ____ wave.

36.  If you are lying on a raft, and you notice that the number of waves that go past the raft increases, you also find that the distance between each crest ____.

37.  When light is reflected from a surface, as the angle of incidence increases, the angle of reflection____.

38.  You can see this paper, your desk, and the person in front of you because light is being ____.

46.  When the crest of one wave passes through the trough of another wave, ____ takes place.

47.  The unit used to measure frequency is the ______.

48. Reverberation in concert halls is caused by ______of sound.

49.  Bats use ______to navigate and find prey.

50.  A system of using the reflection of underwater sound waves is ____.

51.  The electromagnetic waves with wavelengths slightly longer than visible light are ____.

52.  The frequency of purple light is ____ that of yellow light.

53.  ______waves are used for medical imaging.

54.  Reflection of light waves from a smooth surface is called____.

55.  The primary light colors are ____.

56.  The color ____ is produced by blending the three primary colors of light.

Label the diagram above.