Chapter Review Answers
Since the behavior in 3rd and 4th hour today was so delightful, I decided to ease everyone’s anxiety and post the correct answers to the chapter review assignment. It is not a graded assignment but it will help students study for Monday’s test.
Thanks for making my Friday more peaceful!
1. Longitudinal and transverse waves differ in how the media moves. In a transverse wave, the media moves perpendicular to the direction the energy moves. Longitudinal wave media move parallel to the movement of energy.
2. Wavelength and amplitude are different in how they measure a wave. Wavelength is the length of one wave, whereas amplitude is how far the wave moves away from its rest position.
3. Reflection and refraction are two different ways waves can interact. Refelcted waves bounce off of an opaque surface. Refracted waves enter a new medium and bend due to travelling at a new speed.
4. A
5. B
6. C
7. B
8. A
9. B
10. 
11. Wave speed is the frequency multiplied by the wavelength. S=FxW
12. Skip
14. Waves carry energy but not matter. So, waves will make the canoe bob in a small circle and stay in one spot, but they will not move the boat.
15. The vibration from the singer’s voice cause the glass to vibrate at one of its resonant frequencies. Once this happens, the glass will vibrate with great amplitude, but since glass is not flexible, it can’t handle the vibration and it shatters.
18. Rank: B, C, A ~ Wave B has a high frequency and a high amplitude so it has the most energy. C has a similar frequency but a smaller amplitude, so I put it next. A has a low amplitude and a low frequency, so it has the lowest energy.