SHS 311 TEST 1 EDITED ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS

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SHS 311 TEST 1 EDITED ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS What part of the mass-spring model of vibration represents elasticity? - Answer -Spring What is the formula for the inverse square law? - Answer -I = TP/A intensity = total power/area As power goes up intensity goes ______ - Answer -up As area goes up, intensity goes ________ - Answer -down What is the relationship between sound intensity and distance? - Answer -they are inversely proportional to the square of distance What is the area of a sphere? (because sound radiates away spherically) - Answer -4∏r^2 Every time you double the distance what happens to the sound intensity? - Answer -it decreases by 6 db Constructive (reinforcement) interference - Answer -The interference that occurs when two waves combine to make a wave with a larger amplitude destructive (cancellation) interference - Answer -The interference that occurs when two waves combine to make a wave with a smaller amplitude Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com What does it mean if a sound is transmitted? - Answer -the wave goes through the object What does it mean if a sound is diffracted? - Answer -the sound pressure wave goes around the new object If a medium has a high characteristic impedance what does that mean? - Answer -less sound energy goes through the medium If a medium has a low characteristic impedance what does that mean? - Answer -that more sound energy will go through it As a tube gets longer the frequency is __________ - Answer -lower (so lower pitch) What is the equation for sinusoidal vibration? - Answer -d(t) = A sin (2 ∏ f t + 𝜽) What are the three parameters of the sinusoidal vibration equation? - Answer -frequency, peak amplitude, starting phase What is the peak amplitude if the peak-to-peak amplitude of a sine wave is 10 mm? - Answer -5 mm How many degrees are there in a quarter of the period of sinusoidal vibration? - Answer -90 Which is one aspect of auditory perception? - Answer -Pitch How does air pressure change when the altitude increases? - Answer -Decreases What is the relationship between sound intensity I and pressure p? - Answer -I is proportional to p^2 Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com