1.
If a vibrating object has a fundamental frequency of 262 Hz, what is the frequency of the third overtone?A) 786 Hz B) 1,310 Hz C) 2,096 Hz D) 1,048 Hz 2.
How does the sound of a police siren change if a police car is moving away from you?A) pitch decreases B) amplitude decreases C) amplitude increases D) pitch increases 3.
What part of the wave is labeled G? (30.0K)
A) amplitude B) compression C) rarefaction D) wavelength 4.
What part of the wave is labeled K? (30.0K)
A) amplitude B) rarefaction C) compression D) wavelength 5.
Which part of the human ear is at the start of the inner ear?A) cochlea B) oval window C) ear canal D) hammer 6.
What range of frequencies can most humans hear?A) 20 Hz to 20,000 Hz B) 0 Hz to 170 Hz C) 0 Hz to 7,000 Hz D) 100 Hz to 10,000 Hz 7.
Suppose you are sitting at an outdoor band concert. Using the data in the table, how long would it take you to hear the beat of a drummer 75 m away? (3.0K)
A) 0.22 s B) 0.26 s C) 0.34 s D) 0.46 s 8.
Using the data in the table, how far can sound travel in steel in 0.011 s? (3.0K)
A) 65 m B) 19 m C) 54 m D) 73 m 9.
A fish locator sends out a pulse of sound and measures the time for the sound to bounce off the fish and travel back to the boat. If the fish are 37 m below the boat, how long would the sound's round trip in water take? (3.0K)
A) 0.050 s B) 0.025 s C) 0.11 s D) 0.53 s 10.
Which of the following, when played at the same time, would produce a beat?A) two notes close in amplitude B) two notes close in frequency C) two notes with different amplitudes D) two notes with different frequencies