Which of the following can change the frequency of a wave?
a. interference
b. the Doppler effect
c. diffraction
d. all of the above
[Ques. 2] Two sound waves traveling through the air have different frequencies. Consequently, they must also have different
a. amplitudes
b. speeds
c. wavelengths
d. all of the above
[Ques. 3] If a source of sound is traveling toward you, the speed of the sound waves reaching you is _______________ the speed the sound waves would have had if the source were stationary.
a. faster than
b. slower than
c. the same as
[Ques. 4] You drop a rock in a pond, and the water waves travel away from the rock with a certain speed. You drop a heavier rock in the water. The speed of the waves in the water from the heavier rock
a. remains unchanged
b. increases
c. decreases
d. cannot be determined
[Ques. 5] When the frequency of the source of a water wave increases, the speed of the waves traveling in the water
a. remains unchanged
b. increases
c. decreases
d. cannot be determined
[Ques. 6] When the frequency of the source of a water wave increases, the distance between successive peaks in the wave
a. remains unchanged
b. increases
c. decreases
d. cannot be determined
[Ques. 7] The wavelength of a wave multiplied by the frequency of the wave is the wave's
a. speed
b. frequency
c. wavelength
d. amplitude
e. loudness
[Ques. 8] The distance between peaks on a wave divided by the time for the wave to travel this distance is the wave's
a. speed
b. frequency
c. wavelength
d. amplitude
e. loudness
[Ques. 9] The maximum displacement of points on a wave from the equilibrium position is the wave's
a. speed
b. frequency
c. wavelength
d. amplitude
e. loudness
[Ques. 10] What is the symbol traditionally used to represent wavelength?
a. wl c.
b. y d.
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