Physics Quiz Review

Select the best answer to the following question: Which factors influence the speed of sound through a substance? O Weight and volume O Mass and volume O Weight and temperature O State of matter and temperatureCalculate the wavelength of a 675-Hz sound wave traveling at a speed of 340 m/s in air. O 50.40 m O 0.504 m O 0.0504 m O 5.04 mHow many seconds will it take an echo to reach your ears if you yell toward a mountain 92.0 m away on a day when the air temperature is 0"C? O 3.60 s O 0.556 s O 1.80 s O 0.277 sSounds with a large amplitude are O perceived as noise O loud O high-pitched O quiet O low-pitchedThe "highness" or "lowness" of a musical tone is called the O intensity O scale O loudness O pitch O timbreEarphones are worn by factory workers to protect them from hearing loss. Which interaction of sound waves does this describe? Choose all that apply. Destructive interference O Diffraction Constructive interference RefractionAn echo results because of the of sound waves. O destructive interference constructive interference O diffraction O reflection O refractionTwo people. represented by the letters A and B are standing on a sidewalk when an ambulance races by, blaring its siren. The diagram shows several circular waves that were created by the siren. Two people. represented by the letters A and B are standing on a sidewall: when an ambulance races by. blaring its siren. The diagram shows several circular waves that were created by the siren. Which statement correctly describes the direction the ambulance traveled and the frequency perceived by the observers? ID The ambulance traveled from B to Ar and person A hears a lower frequency. (:1 The ambulance traveled from B to A, and person A hears a higher frequency. ID The ambulance traveled from A to El, and person A hears a higher frequency. (:1 The ambulance IIaveled from A to B, and person B hears a higher frequency. (:3 The ambulance traveled from B to Ar and person B hears a higher frequency. O The ambulance traveled from A to B, and person B hears a lower frequency. Light waves are best described as O transverse and electromagnetic O longitudinal and mechanical O longitudinal and electromagnetic O transverse and mechanicalWhich of the following statements best compares the wavelengths of the regions of the electromagnetic spectrum? O Infrared waves are longer than gamma rays O Ultraviolet waves are longer than visible light waves O Radio waves are shorter than visible light waves O Microwaves are shorter than x-rays