1) The___ of sound (in air) that can be heard by humans range about 2 centimeters to about 17 meters

-frequency

-amplitude

-period

-wavelength

2) The change in the detected frquency of a wave resulting from the motion of either source or the observer is called___

-harmonic analysis

-doppler effect

-quality of the sound

-the pitch of the sound

3) Suppose a guitar string has a length of 0.8 m, a mass of 0.12kh, and tension of 135 N. What is its the linear density?

-0.15 kg/m

-6.67 kg/m

-6.67 m/kg

-169 N/m

-16.2 NM

4) Reference problem 3

What is the speed of the wave on that guitar string?

-900 m/s

-30 m/s

-12 m/s

-20 m/s

5) The__ of the waves equal the number of cycles that pass by each second multiplied by the length of each cycle.

-speed

-frequency

-amplitude

-period