A wave moves in a rope with a certain wavelength. A second wave is made to move in the same rope with twice the wavelength of the first wave. The frequency of the second wave is _______________ the frequency of the first wave.
a. 1/2 b. the same as
c. 2 times d. unrelated to
[Ques. 2] 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. 3] 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. 4] 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. 5] 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. 6] 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. 7] 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. 8] 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. 9] 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. 10] 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.
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