Purpose: To investigate the relationship between the speed of sound in air through the pulse-echo experiment and the measured air temperature. Hypothesis: I believe the measured air temperature will affect the speed of sound because sound waves are longitudinal waves composed of the alternating compressions and rarefactions in air. If the air temperature is below 0°C‚ then the speed of sound would be lower than 331.6 m/s and if the air temperature is above 0°C‚ then the speed of sound would be higher
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Speed of Sound in Air By: James Chen Lab Partner: Jin Zhang and Jake Salpeter Phys 130‚ Lab section: EE11 TA: Khaled Elshamouty Date of lab: October 29‚ 2013 Introduction Sound is a longitudinal (compressional) wave caused by a vibrating source. In this experiment‚ we use standing sound waves created by the tuning forks to determine the speed of sound in air in a tube when it reaches different resonances. In this lab we focused primarily on using standing sound waves (compressional
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Sound is a vibration that spreads across a medium (i.e.‚ air or water) as a mechanical longitudinal wave formed by pressure. A Mechanical longitudinal wave can also be called compression wave as it generates compressions and rarefaction when traveling through a medium. (Sound Is a Pressure Wave - Physics Classroom) The amplitude of a sound wave is the difference between the pressure of the undisturbed air and the maximum pressure caused by the wave. The Speed of sound deviates with the temperature
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Research Question: E. coli strain MM294 is placed under different sound frequencies. Does sound frequency affect the growth of E. coli strain MM294? Background: Noise pollution is a problem in urban areas and can be the cause of several health issues and increase risks of disease. It is interesting that even something inanimate like sound could affect so much of biological processes. The movement of energy through matter produces sound. Sound is a mechanical wave that travels
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able to measure the phonological abilities of a child with cleft lip and/or palate is important in the development of goals as well as the treatment process. It was found that children with cleft palate have a very significant delay in phonetic inventory and phonetic accuracy when compared to children with no cleft lip and/or palate. This suggests that phonological approaches to treatment may help them in later years of academics as well (Scherer‚ Williams‚ Stoel-Gammon‚ & Kaiser‚
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CCCH9008 Noise Pollution and Control in HK Two important characteristics of sound or noise Frequency of Sound Sound is the quickly varying pressure wave travelling through a medium. When sound travels through air‚ the atmospheric pressure varies periodically. The number of pressure variations per second is called the frequency of sound‚ and is measured in Hertz (Hz) - cycles per second. Loudness A loud noise usually has a larger pressure variation and a weak one has smaller pressure variation
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Technology of the Future CIS 105 Sunday October 3‚ 2010 Technology of the Future There are numerous different technological devices in society today and countless more to come in the near future‚ but one of today’s technological devices that are used nearly every day is Medical sonography (ultrasonography/ultrasound) an ultrasound-based diagnostic imaging technique used to visualize muscles and internal organs‚ their size‚ structures and possible pathologies or lesions. (TheFreeDictionary
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Abstract This study was conducted to determine the combined effects of coloured lighting and ambient sound on mood. 48 psychology undergraduates‚ comprising of 38 females and ten males‚ took part in this study. This study is a 2x2 between subjects design. The coloured lightings used in this study are blue and yellow combined with the ambient sound of ‘city’ and ‘nature’ whereas mood was measured with the Positive and Negative Affect Schedule (PANAS). We discovered that coloured lighting had no significant
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One philosophy that some persons question‚ including a few of our own aviation medical examiners‚ relates to our greater flexibility in granting special issuances to private pilots as opposed to air carrier and other commercial pilots. The arguments against such flexibility rotate around the thought that‚ in the event of a medical incapacitation‚ an air carrier or commercial pilot usually has another pilot on board who can take control of the aircraft and safely land. In contrast‚ the private pilot
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HK01 Civil Engineering Programme KA 40701 Makmal IV Journal Reports Group 6 (C1 -E) Noise Level Range in Lecture Hall Nancy Chua Yin Yee‚ Fashius Mark Marail‚ Fatin Suraya bte Suhaili‚ AG.Mohd Taufiq B.Ag.Ali‚ Syazwan Bin Madso‚ Dayang Haniza Binti Awang Patra Abstract: Sound is technically described in term of loudness (amplitude) of the sound and frequency (pitch) of the sound. The standard unit measurement of the loudness of sound is the decibel (dB). Noise can be taken as pollution because
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