# Unit 13 Study Guide Waves, Light and Sound

```Unit 13 Study: Guide Waves, Light and Sound
1. What is a wave?
2. Draw a transverse wave below. Label a crest, trough, wavelength and amplitude.
3. Which type of wave is pictured below?
4. Label a wavelength in the picture below.
5. What are compressions? Label compression the picture above.
6. What are rarefactions? Label rarefactions on the picture above.
7. Describe how the sound energy is transferred in the picture above.
8. Define medium. Give an example.
9. Label the waves below as transverse or longitudinal. Give an example of a wave in real life that is that
type of wave.
10. Define frequency.
11. Define amplitude.
12. Draw a wave that shows loud and quiet sounds. Label loud and quiet on your wave.
13. Draw a wave that shows high pitch and low pitch. Label the high pitch and low pitch on your wave.
14. The longer the wavelength, the ______________ the pitch.
15. The shorter the wavelength, the ______________ the pitch.
16. The taller the amplitude, the ______________ the sound.
17. The shorter the amplitude, the ______________ the sound.
18. The longer the wavelength, the ______________ the frequency.
19. The shorter the wavelength, the ______________ the frequency.
20. The higher the frequency, the ______________ the pitch.
21. The lower the frequency, the ______________ the pitch.
22. Unit for frequency: ______________
23. Unit for loudness: ___Decibels___ (_dB_)
24. What is the difference between pitch and loudness?
25. Which does sound travel the fastest through: solid, liquid or gas? WHY?
26. What are electromagnetic waves?
27. Label each type of radiation on the Electromagnetic Spectrum in the correct order according to
wavelength on the picture below.
28. Which type of wave has the highest frequency, the highest energy and the shortest wavelength?
29. Which type of wave has the lowest frequency, the lowest energy and the longest wavelength?
30. Which type of wave is strong enough to cause a chemical reaction/change?
31. Which types of waves are used for communication?
32. Which type of wave is given off from all vibrating molecules in all matter?
33. Which type of wave is used in cell phones, radar guns, GPS, and satellites?
34. Which type of wave can pass through skin and muscles but not through your bones?
35. Which type of wave is produced when the nucleus of an atom is changed?
36. Which is the only type of wave that we can see?
37. Which three types of waves are emitted from the sun?
38. What are 4 sources of visible light?
39. When is an object “seen”?
40. What is luminous?
41. What is illuminated? Give an example.
42. Explain the difference between a regular reflection and a diffuse reflection.
43. .Which types of surfaces have a regular reflection?diffuse reflection? Regular –smooth &amp;
shinyDiffuse –rough &amp; dull
44. What is refraction?Why does it occur?
45. Give two examples of refraction.
46. Define transparent. Give an example.
47. Define translucent. Give an example.
48. Define opaque. Give an example.
49. What does it mean when light is absorbed (absorption)?
50. What does it mean when light is transmitted (transmission)?
51. Explain why we see all the colors of the visible light spectrum when light shines through a prism or
water droplet.
52. Why do we see the color blue?
53. What makes up the visible light spectrum?
54. Why does a white t-shirt appear white?
55. Explain how we see something that is black. three types of waves are emitted from the sun?
56. Describe Doppler effect. Give an example.
57. Define redshift and blueshift
```