key3 - SCIE 3101 Test III MULTIPLE CHOICE. (3 points each)...

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SCIE 3101 Test III MULTIPLE CHOICE. (3 points each) 1) How many vibrations per second are associated with a 101-MHz radio wave? A) more than 101,000,00 B) 101,000,000 C) less than 101,000,000 2) The vibrations of a longitudinal wave move in a direction A) along the direction of wave travel. B) at right angles to the direction of wave travel. 3) A standing wave occurs when A) a wave reflects upon itself. B) the speed of the wave is zero or near zero. C) the amplitude of a wave exceeds its wavelength. D) two waves overlap. 4) A bow wave is produced when a wave source moves A) nearly as fast as the waves it produces. B) faster than the waves it produces. C) as fast as the waves it produces. 5) If you double the frequency of a vibrating object, its period A) doubles. B) is quartered. C) halves. 6) A sound source of high frequency emits a high A) amplitude. B) pitch. C) speed. D) all of these E) none of these 7) A sound wave is a A) shock wave. B) transverse wave. C) longitudinal wave. D) standing wave. E) none of these 8) The phenomenon of beats results from sound A) interference . B) refraction.
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This note was uploaded on 11/18/2010 for the course CPHY 101 taught by Professor Jay during the Fall '10 term at University of Massachusetts Boston.

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key3 - SCIE 3101 Test III MULTIPLE CHOICE. (3 points each)...

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