1. < BackNext >PreviewMain The Energy of Waves Preview Chapter 20 CRCT Preparation

2. < BackNext >PreviewMain Chapter 20 CRCT Preparation 1. The amount of energy that a wave carries is related to the wave’s amplitude and wavelength. Which of the following waves would carry the most energy? A B C D

3. < BackNext >PreviewMain Chapter 20 CRCT Preparation 1. The amount of energy that a wave carries is related to the wave’s amplitude and wavelength. Which of the following waves would carry the most energy? A B C D

4. < BackNext >PreviewMain Chapter 20 CRCT Preparation 2. Which of the following items would work well in space? A drum set B guitar C radio D flashlight

5. < BackNext >PreviewMain Chapter 20 CRCT Preparation 2. Which of the following items would work well in space? A drum set B guitar C radio D flashlight

6. < BackNext >PreviewMain 3. For a laboratory experiment, Antonia wants to measure the amplitude of a transverse wave. Which of the following distances is equal to the amplitude of a transverse wave? A the distance from one crest to the next B the distance from the highest point to the lowest point C the distance from one trough to the next D the distance from the rest position of the wave to its highest point Chapter 20 CRCT Preparation

7. < BackNext >PreviewMain Chapter 20 CRCT Preparation 3. For a laboratory experiment, Antonia wants to measure the amplitude of a transverse wave. Which of the following distances is equal to the amplitude of a transverse wave? A the distance from one crest to the next B the distance from the highest point to the lowest point C the distance from one trough to the next D the distance from the rest position of the wave to its highest point

8. < BackNext >PreviewMain 4. Jeff and Lyle were fishing in the ocean. Jeff bet Lyle that the ocean waves moving quickly by the floating boat would not carry away a piece of bread that Jeff threw into the water. Which of the following is a valid explanation for this claim? A Ocean waves are surface waves, which move the particles of their medium in circles. B Ocean waves are longitudinal waves, which move the particles of their medium back and forth. C Ocean waves are combination waves, which can move particles along the ocean surface. D Ocean waves are transverse waves, which move the particles of their medium up and down. Chapter 20 CRCT Preparation

9. < BackNext >PreviewMain Chapter 20 CRCT Preparation 4. Jeff and Lyle were fishing in the ocean. Jeff bet Lyle that the ocean waves moving quickly by the floating boat would not carry away a piece of bread that Jeff threw into the water. Which of the following is a valid explanation for this claim? A Ocean waves are surface waves, which move the particles of their medium in circles. B Ocean waves are longitudinal waves, which move the particles of their medium back and forth. C Ocean waves are combination waves, which can move particles along the ocean surface. D Ocean waves are transverse waves, which move the particles of their medium up and down.

10. < BackNext >PreviewMain 5. Lanh performed a laboratory experiment about wave motion. He and a partner held opposite ends of a rope. Each person generated a wave crest in the same direction at the same time. What happened when the wave crests met? A The amplitude of the combined wave was larger than the amplitude of the individual waves. B The amplitude of the combined wave was smaller than the amplitude of the individual waves. C The amplitude of the combined wave was the same as the amplitude of the individual waves. D The waves cancelled each other out. Chapter 20 CRCT Preparation

11. < BackNext >PreviewMain Chapter 20 CRCT Preparation 5. Lanh performed a laboratory experiment about wave motion. He and a partner held opposite ends of a rope. Each person generated a wave crest in the same direction at the same time. What happened when the wave crests met? A The amplitude of the combined wave was larger than the amplitude of the individual waves. B The amplitude of the combined wave was smaller than the amplitude of the individual waves. C The amplitude of the combined wave was the same as the amplitude of the individual waves. D The waves cancelled each other out.

12. < BackNext >PreviewMain Chapter 20 CRCT Preparation 6. The data were collected for sound waves traveling through water. If all other factors were the same, how far did the sound wave travel after 4 seconds? A 5.0 km B 5.5 km C 6.0 km D 6.5 km

13. < BackNext >PreviewMain Chapter 20 CRCT Preparation 6. The data were collected for sound waves traveling through water. If all other factors were the same, how far did the sound wave travel after 4 seconds? A 5.0 km B 5.5 km C 6.0 km D 6.5 km

14. < BackNext >PreviewMain 7. Marie is conducting an experiment about diffraction. Which of the following hypotheses could she test in order to learn more about diffraction? A Light waves will bend as they pass through a small opening. B Light waves will bend as they move from air to water. C Light waves will pass through different media at different speeds. D Light waves will bounce off of objects. Chapter 20 CRCT Preparation

15. < BackNext >PreviewMain Chapter 20 CRCT Preparation 7. Marie is conducting an experiment about diffraction. Which of the following hypotheses could she test in order to learn more about diffraction? A Light waves will bend as they pass through a small opening. B Light waves will bend as they move from air to water. C Light waves will pass through different media at different speeds. D Light waves will bounce off of objects.

16. < BackNext >PreviewMain 8. What is the frequency of a wave that has a wavelength of 3 m and a speed of 18 m/s? A 3 Hz B 6 Hz C 9 Hz D 15 Hz Chapter 20 CRCT Preparation

17. < BackNext >PreviewMain Chapter 20 CRCT Preparation 8. What is the frequency of a wave that has a wavelength of 3 m and a speed of 18 m/s? A 3 Hz B 6 Hz C 9 Hz D 15 Hz

18. < BackNext >PreviewMain Chapter 20 9. Why are string instruments, such as violins and cellos, hollow with a hole below the strings? CRCT Preparation

19. < BackNext >PreviewMain Chapter 20 9. Answer - Full-credit answers should include the following points: The hole in a string instrument leads into the hollow body, which contains air. When the strings of a violin or cello are played, they form standing waves. The vibrations from the standing waves cause the air in the string instrument to resonate. This allows the amplitude of the sound waves to increase, so the string instrument sounds louder. CRCT Preparation

20. < BackNext >PreviewMain Chapter 20 10. Why does a rainbow of colors appear after white light passes through a glass prism? CRCT Preparation

21. < BackNext >PreviewMain Chapter 20 10. Answer - Full-credit answers should include the following points: White light is composed of different wavelengths, or colors, of light. When white light passes through a glass prism, each wavelength of light travels through the prism at a different speed. Because the different wavelengths of light travel through the prism at different speeds, each color refracts, or bends, differently. This refraction causes the different colors to spread out into a rainbow. CRCT Preparation