; 20. The diagram below represents two waves, A and B, traveling through the same uniform medium. Wave A Which characteristic is the same for both waves? A) amPlitude B) period C) frequency 21. What is the speed of light (f= 5.09 X 10M Hz) in 22. 23. 24. 25. ethyl alcohol? A) 2.43 X 102 m/s B) 2.21 X 108 m/s C) 1.24 X 108 m/s D) 4.53 X109m/s The diagram below represents a wave moving toward the right side of this page. M > Which wave shown below could produce a standing wave with the original wave? A)/\\/\\ B)/\\/\\ The diagram below represents a light ray reecting from a plane mirror. Normal nghl I ray 70 l 70 20 ' 20 Plane mirror The angle of reection for this light ray is A) 20 B) 70 C) 140 D) 160 Two waves having the same amplitude and the same frequency pass simultaneously through a uniform medium. Maximum destructive interference occurs when the phase difference between the two waves is A) 180 B) 360 C) 0 D) 90 The diagram below shows a periodic wave. B F D Which two points on the wave are 180. out of phase? A) A and C B) B and E C) Fand G Wave B D) wavelength H D) D and H \f6. Which diagram represents a light my increasing in speed as it travels from one medium to another? A) Normal B) Normal Medium A Medium B 7. A pulse traveled the length of a stretched spring. The pulse transferred A) energy, only B) mass, only C) both energy and mass D) neither energy nor mass 8. Which list identies portions of the electromagnetic spectrum in order of increasing frequency? A) infrared, visible, ultraviolet, gamma ray B) ultraviolet, visible, infrared, gamma ray C) gamma ray, ultraviolet, visible, infrared D) gamma ray, infrared, visible, ultraviolet 9. If the amplitude of a sound wave is increased, there is an increase in the sound's A) pitch B) wavelength C) velocity D) loudness 10. Compared to the speed of microwaves in a vacuum, the speed of x rays in a vacuum is A) less B) the same C) greater 1 l. The diagram below shows light rays in air about to strike a glass window. Light rays Air When the rays reach the boundary between the air and the glass, the light is A) totally refracted B) partially reected and partially refracted C) partially reflected and partially diffracted D) totally reected Medium A Medium B 12. Ultrasound is a medical technique that transmits sound waves through soft tissue in the human body. Ultrasound waves can break kidney stones into tiny fragments, making it easier for them to be excreted without pain. The shattering of kidney stones with specific frequencies of sound waves is an application of which wave phenomenon? A) resonance B) the Doppler effect C) reection D) refraction ' ' n Waves FakeHome Exat d. is a stan mg Wave ' 2m below represen . 4. The diagrl by a vibrating wave generator. a pedestrian crossing the road, orn. Compared to the sound ected by I As a car approaches the dri\\ er blons the h \"cue emitted by the hom. the sound wave det the pedestrian has a A) louer frequency and a lower pitch B) lower frequency and a higher pitch C) higher frequency and a lower pitch D) higher frequency and a higher pitch 2. A transverse wave passes through a uniform material medium from left to right, as shown in the diagram below. 'I! ' Which diagram best represents the direction of vibration of the particles of the medium? A) B) 3. The diagram below shows two points, A and B, on a wave train. A B How many wavelengths separate pointA and pointB? A) 1.0 B) 1.5 C) 3.0 D) 0.75 produced in a string generator How many antinodes are shown in this standing wave? A) 2 B) 4 C) 3 D) 6 5. What is the period of a sound wave having a frequency of 340. hertz? A) 9.73 X 10'1 s B) 2.94 x 10'3 s C) 1.02 x 10\" s D) 3.40 x 102 s