quiz

Topics: Sound, Acoustics, Lighting, Noise pollution, Noise barrier / Pages: 44 (6114 words) / Published: Aug 24th, 2014
AQ1.1 What is sound?
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Arch1361 Environment 2. Exam Preparation Quizzes 1. Vibrations that travel through the air and can be heard when they reach a persons ear. 2.A form of energy transmitted through the air (or other material).
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AQ1.2 What terms (or “characteristics”) do we use to describe sound?
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Arch1361 Environment 2. Exam Preparation QuizzesFrequency and Level (amplitude)
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AQ1.3 What is the difference between Sound Power and Sound Pressure?
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Arch1361 Environment 2. Exam Preparation Quizzes Sound power is the CAUSE, Sound Pressure is the EFFECT.
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Arch1361 Environment 2. Exam Preparation Quizzes
AQ1.4 What terms are used for Sound Power Level and Sound Pressure Level?
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Arch1361 Environment 2. Exam Preparation Quizzes Sound Power Level = SWL, Sound Pressure Level = SPL.
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Arch1361 Environment 2. Exam Preparation Quizzes
AQ1.5 How much does the sound from a “point source” reduce every time the receiving distance is doubled?
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Jesiah Davis 4 x decrease in sound pressure. (6dB reduction)
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AQ1.6 Ditto for a “line source”?
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Jesiah Davis 3dB reduction (if it is a true line source) or half sound pressure per doubling of distance.
Like · Reply · 5 hours ago
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Arch1361 Environment 2. Exam Preparation Quizzes
5 hours ago
AQ1.7 What is the (approximate) frequency range that we hear?
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Jesiah Davis 20Hz-20000Hz (Matthew Harrison) 20Hz-16000Hz (Szokolay).
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Mickael Akkerman I think he will consider the lecture values = 20Hz to 20KHz
Like · 3 hours ago

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Arch1361 Environment 2. Exam Preparation Quizzes
5 hours ago
AQ1.8 What is the (approximate) range of noise levels we can hear (from the threshold hearing to the threshold feeling)?
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Jesiah Davis approx. one 20 millionth of a Pascal to around 60 Pascals.
Like · Reply · 4 hours ago
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4.
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