... the speed of sound depends on _____ what its traveling through. a factor perceived by the ear that depends primarily on the amplitude of the wave the observer hears. Answer. As energy reaching the ear depends on square of amplitude, so loudness of sound depends on two factors (z) Amplitude of sound waves and The 'loudness' of a sound is based upon its intensity, or power per area. I. Loudness A. Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table. ... timbre gives each instrument its own sound when they have _____ pitch and loudness. So, sound is more clear. Mathematically: L= logI L = K logI -----(1) Where ‘k’ is constant of proportionality. Sound level is not a measure of loudness, as loudness is a subjective factor and depends on the characteristics of the ear of the listener. Further,-“the dew factor at night increases the speed of sound as moisture level increases. The loudness of a sound depends on two factors: the amount of energy it ta kes to ma ke the so und and the distance from the source of the sound. The amplitude of the sound wave depends on the vibration caused by the source of the sound. Volume or loudness is determined by the amplitude of the sound wave. That is, the threshold of hearing is 0 decibels. When looking at a sound wave graph, the higher-pitched sounds feature waves that are closer together, or more tightly wound, while lower-pitched sounds feature waves that are farther apart. On what factor does loudness of sound depend? Your teacher will give you a wooden board with two nails in it. Energy of a sound source B. C. II. Amazingly, many musicians, who have been trained are capable of detecting a difference in frequency between two separate sounds that are as little as 2 Hz. 1. Question 25 Suggest three measures to limit noise pollution in your locality. In an attempt to overcome this problem, scales have been developed to correlate loudness with objective measurements of sound. Pitch A. State True or False. Intensity of sound and how it relates to loudness, the decibel levels of different sounds and factors that affect sound intensity. Long Answer Type Question. If Lo represent the loudness of the faintest audible sound of intensity Io and L is the loudness of an unknown sound of intensity I, then above equation can be written as. Or loudness of sound is directly proportional to the logarithm of sound. EASY. Loudness of sound is measured in decibel (dB). View Answer. ... Name the factor that determines: Loudness of the sound heard. The decibel level of a sound having the threshold intensity of 10 −12 W/m 2 is β = 0 dB, because log 10 1 = 0. Loudness – amplitude ... Bookmark; 36. The pitch of sound of stringed instrument can be varied by varying its length. View Answer. 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