ENERGY OF WAVES ch.1 PRACTICE TEST Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. If a wave is traveling at a certain speed and its frequency is doubled, what happens to the wavelength of that wave? a. The wavelength doubles. c. The wavelength is stopped. b. The wavelength is halved. d. The wavelength remains the same. ____ 2. A wave can make a leaf bob up and down on the water, but it cannot move the leaf toward the shore. This is because waves transfer only a. matter. c. media. b. energy. d. crests. ____ 3. Which of the following waves do NOT require a medium? a. ocean waves c. sound waves b. seismic waves d. radio waves ____ 4. Which of the following is NOT a property of a wave? a. refraction c. frequency b. amplitude d. wavelength ____ 5. When two objects, such as marimba bars and columns, vibrate at the same frequency, which of the following occurs? a. refraction c. resonance b. reflection d. amplitude ____ 6. If a wave is traveling at a certain speed and its frequency is cut in half, what would happen to the wavelength of the wave? a. The wavelength would be halved. b. The wavelength would produce a standing wave. c. The wavelength would remain the same. d. The wavelength would be doubled. ____ 7. How do waves transfer energy? a. through ocean waves b. by the vibration of particles in a medium ____ 8. A section of a longitudinal wave where the particles are crowded together is called a a. rarefaction. c. vibration. b. compression. d. surface wave. ____ 9. When the crests of one wave overlap the crests of another wave or waves, which of the following occurs? a. diffraction c. constructive interference b. destructive interference d. resonant frequencies c. through compression d. by a combination of waves ____ 10. A standing wave results from a. diffraction. b. refraction. c. interference. d. a change in medium. ____ 11. An echo is the result of a a. reflected sound wave. c. refracted sound wave. b. diffracted sound wave. ____ 12. An example of a mechanical wave is a(n) a. light wave. b. radio wave. d. dispersed sound wave. c. ocean wave. d. X ray. ____ 13. A disturbance that sends energy through matter or empty space is called what? a. wave c. medium b. trough d. crest ____ 14. Which of the following wave types must have a medium? a. X ray c. ocean waves b. visible light d. microwaves ____ 15. What is the amplitude of a wave related to? a. velocity b. speed c. mass d. height ____ 16. What is wavelength a measure of? a. height of a wave b. speed of a wave c. temperature of a wave d. distance between points on two waves ____ 17. The equation (ν = λ x ƒ) is called what? a. frequency equation b. wave equation c. lambda equation d. wavelength equation ____ 18. The frequency of a wave is measured using which of the following units? a. decibel c. meters per second b. hertz d. wavelength ____ 19. What is a reflected sound wave called? a. transmittal b. interaction c. echo d. return ____ 20. What happens to a wave when it is refracted? a. The wave is bent. b. The wave is transmitted. c. The wave is reflected. d. The wave is radiated. ____ 21. Why do sound waves travel around corners better than light waves? a. Sound waves radiate. c. Sound waves bend. b. Light waves bend. d. Light waves radiate. Matching Match each item with the correct statement below. a. transverse wave e. b. electromagnetic wave f. c. trough g. d. medium h. longitudinal wave wave crest mechanical wave ____ 22. a substance through which a wave can travel ____ 23. a wave that does not need a medium but can go through matter ____ 24. any disturbance that transmits energy through matter or empty space ____ ____ ____ ____ ____ 25. 26. 27. 28. 29. the lowest point between each crest of a wave a wave in which the particles of the medium vibrate back and forth along the path that the wave moves the highest point of a transverse wave a wave in which the particles of the medium vibrate in an up-and-down motion a wave that requires a medium through which to travel Match each item with the correct statement below. a. wave speed c. amplitude b. frequency d. wavelength ____ ____ ____ ____ 30. 31. 32. 33. the number of waves produced in a given amount of time the maximum distance that the particles of a wave’s medium vibrate from their rest position the distance from any point on a wave to an identical point on the next wave the speed at which a wave travels through a medium Match each item with the correct statement below. a. reflection e. b. interference f. c. resonance g. d. diffraction h. ____ ____ ____ ____ ____ ____ ____ ____ 34. 35. 36. 37. 38. 39. 40. 41. refraction standing wave destructive interference constructive interference an occurrence in which the crests of one wave overlap the crests of another wave or waves the combination of two or more waves that results in a single wave a phenomenon that occurs when two objects naturally vibrate at the same frequency a change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening the bending of a wave as the wave passes between two substances in which the speed of the wave differs a pattern of vibration that simulates a wave that is standing still an occurrence in which the crests of one wave overlap the troughs of another wave the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through ENERGY OF WAVES ch.1 PRACTICE TEST Answer Section MULTIPLE CHOICE 1. ANS: OBJ: 2. ANS: OBJ: 3. ANS: OBJ: 4. ANS: OBJ: 5. ANS: OBJ: 6. ANS: OBJ: 7. ANS: OBJ: 8. ANS: OBJ: 9. ANS: OBJ: 10. ANS: OBJ: 11. ANS: OBJ: 12. ANS: OBJ: 13. ANS: OBJ: 14. ANS: OBJ: 15. ANS: OBJ: 16. ANS: OBJ: 17. ANS: OBJ: 18. ANS: OBJ: 19. ANS: OBJ: 20. ANS: OBJ: 21. ANS: OBJ: B 2 B 1 D 2 A 1 C 3 D 2 B 1 B 3 C 2 C 2 A 1 C 2 A 1 C 2 D 1 D 2 B 2 B 2 C 1 A 1 C 1 PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.4 DIF: 1 REF: 2 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 2 DIF: 1 REF: 3 DIF: 1 REF: 2 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 2 DIF: 1 REF: 2 DIF: 1 REF: 2 DIF: 1 REF: 2 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 3 MATCHING 22. ANS: OBJ: 23. ANS: OBJ: 24. ANS: OBJ: 25. ANS: OBJ: 26. ANS: OBJ: 27. ANS: OBJ: 28. ANS: OBJ: 29. ANS: OBJ: D 2 B 2 F 1 C 3 E 3 G 3 A 3 H 2 PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 1 IV.4.H.3 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 1 DIF: 1 REF: 1 30. ANS: OBJ: 31. ANS: OBJ: 32. ANS: OBJ: 33. ANS: OBJ: B 1 C 1 D 1 A 1 PTS: STA: PTS: STA: PTS: STA: PTS: STA: 1 IV.4.H.4 1 IV.4.H.4 1 IV.4.H.4 1 IV.4.H.4 DIF: 1 REF: 2 DIF: 1 REF: 2 DIF: 1 REF: 2 DIF: 1 REF: 2 34. ANS: OBJ: 35. ANS: OBJ: 36. ANS: OBJ: 37. ANS: OBJ: 38. ANS: OBJ: 39. ANS: OBJ: 40. ANS: OBJ: 41. ANS: OBJ: H 1 B 2 C 3 D 1 E 1 F 2 G 2 A 1 PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: PTS: STA: 1 IV.4.H.4 1 IV.4.H.4 1 IV.4.H.4 1 IV.4.H.4 1 IV.4.H.4 1 IV.4.H.4 1 IV.4.H.4 1 IV.4.H.4 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 3 DIF: 1 REF: 3