SAT2物理习题Waves.doc

　　SAT2物理习题 Waves 　　以下是小编为大家整理的SAT2物理习题 Waves，多做真题对sat物理成绩提高很有帮助，希望广大考生可以坚持每天做真题，赶快下载全篇吧。 　　1. What is the wavelength of a 5 Hz wave that travels with a speed of 10 m/s? 　　(A) 0.25m 　　(B) O.5m 　　(C) 1m 　　(D) 2m 　　(E) 50m 　　2. A rope of length 5 m is stretched to a tension of 80 N. If its mass is 1 kg, at what speed would a 10 Hz transverse wave travel down die string? 　　(A) 2 m/s 　　(B) 5 m/s 　　(C) 20 m/s 　　(D) 50 m/s 　　(E) 200m/s 　　3. A transverse wave on a long horizontal rope with a wavelength of 8 m travels at 2 m/s. At t = 0, a particular point on the rope has a vertical displacement of +A, where A is the amplitude of the wave. At what time will the vertical displacement of this same point on the rope be -A? 　　(A) t = 1/8 s 　　(B) t = 1/4 s 　　(C) t = 1/2s 　　(D) t = 2 s 　　(E) t = 4s 　　4. What is the wavelength of a wave with period 2s and speed 2 cm/s? 　　(A) 0.25 cm 　　(B) 0.5 cm 　　(C) 1 cm 　　(D) 2 cm 　　(E) 4 cm 　　5. A string, fixed at both ends, supports a standing wave with a total of 4 nodes. If the length of the string is 6 m, what is the wavelength of the wave? 　　(A) 0.67 m 　　(B) 1.2 m 　　(C) 1.5 m 　　(D) 3 m 　　(E) 4 m 　　6. A string, fixed at both ends, has a length of 6 m and supports a standing wave with a total of 4 nodes. If a transverse wave can travel at 40 m/s down the rope, what is the frequency of this standing wave? 　　(A) 6.7 Hz 　　(B) 10.0 Hz 　　(C) 13.3 Hz 　　(D) 20.0 Hz 　　(E) 26.7 Hz 　　7. A sound wave travels through a metal rod with wavelength λ and frequency ?. Which of the following best describes the wave when it passes into the surrounding air? 　　Wavelength Freaueoey 　　(A) Less than λ Equal to ? 　　(B) Less than λ Less than ? 　　(C) Greater than λ Equal to ? 　　(D) Greater than λ Less than ? 　　(E) Greater than λ Greater than ? 　　8. In the figure below, two speakers, S1, and S2, emit sound waves of wavelength 2 m, in phase with each other. 　　 　　Let AP be the amplitude of the resulting wave at point P, and AQ the amplitude of the resultant wave at poin