1-Given an open pipe of length 4m , what is its fundamental frequency? Assume the wave passing through the pipe is a sound wave with velocity v :

2-A building collapses in an earthquake, but the neighboring buildings do not. Which of the following phenomena explains this?

3-The frequency of the 6^th harmonic is _____ times the frequency of the 3^rd harmonic?

4-A normal human ear can hear sound of frequency _____.

5-Given a string of length2mwith two fixed ends, what is the longest wavelength of a standing wave that is possible?

6-A guitar string has a length of 0.5m . If the string is vibrating with a wavelength of 0.25m , what harmonic is it vibrating at?

7-The mathematical relationship between intensity and distance is sometimes referred to as an_______ relationship

8- A mosquito'sbuzzis often rated with a decibel rating of 40 dB. Normal conversation is often rated at 60 dB. How many times more intense is normal conversation compared to a mosquito'sbuzz?

9-Resonance in a system, such as a string fixed on both ends, occurs when

10-Two waves, one with an amplitude of 1.2m and the other of 0.78m are superimposed with destructive interference. What is the resultant amplitude?

11-The sound box in a guitar is used to increase the _______ of the sound

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14-Thetubeof any wind instrument acts as a container for a ______ air column.