Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Water surface waves are
a. | longitudinal and perpendicular waves. | c. | longitudinal and transverse
waves. | b. | transverse and horizontal waves. | d. | vertical and horizontal
waves. |
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2.
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A sound wave in air has a frequency of 680 cycles per second. What is the
approximate wavelength of the sound wave?
a. | 680 m | c. | 340 m | b. | 0.5 m | d. | 20 m |
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3.
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A person is standing still and listening to a siren sounding an alarm. The
frequency of the sound is 500 Hz. The person begins running toward the sound at a rate of 20 m/s. The
frequency of the sound the person hears will
a. | remain the same. | c. | decrease. | b. | increase. | d. | change by 20
Hz. |
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4.
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Sound waves from a radio generally travel in which medium?
a. | air | c. | light | b. | earth | d. | water |
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5.
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If a transverse wave is moving from right to left, the individual particles in
the medium are moving
a. | right to left. | c. | up and down. | b. | left to right. | d. | None of the
above |
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6.
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Waves are often caused by
a. | potential energy. | c. | colliding objects. | b. | mechanical energy. | d. | vibrating
objects. |
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7.
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The _____ of a longitudinal wave radiates outward from its source, while the
particles vibrate back and forth about their original positions.
a. | medium | c. | crest | b. | wave front | d. | kinetic energy |
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8.
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Our eyes can detect light only within a range of _____ called visible
light.
a. | frequencies | c. | mediums | b. | speeds | d. | periods |
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9.
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The maximum displacement of a particle by a wave is called
a. | amplitude. | c. | frequency. | b. | wavelength. | d. | period. |
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10.
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The _____ is the distance between two crests of a wave.
a. | amplitude | c. | frequency | b. | wavelength | d. | period |
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11.
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The _____ is the time it takes for one full vibration of a particle in a
medium.
a. | period | c. | amplitude | b. | frequency | d. | wave speed |
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12.
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_____ is the inverse of period.
a. | Wavelength | c. | Frequency | b. | Crest | d. | Amplitude |
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13.
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Calculate the wave speed for a wave with a wavelength of 2 m and a frequency of
0.3 Hz.
a. | 0.6 m/s | c. | 0.15 m/s | b. | 1.67 m/s | d. | 2.3 m/s |
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14.
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What is the period of a wave with a wave speed of 50 m/s and a wavelength of 10
mm?
a. | 2 s | c. | 0.02 s | b. | 0.2 s | d. | 0.0002 s |
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15.
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The speed of a sound wave
a. | depends on wavelength. | c. | depends on amplitude. | b. | depends on the
medium. | d. | None of the
above |
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16.
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Waves travel quickly in a _____ because the molecules are closely packed and
physically bonded together.
a. | liquid | c. | solid | b. | gas | d. | None of the
above |
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17.
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The Doppler effect is an observed change in a wave’s
a. | wavelength. | c. | amplitude. | b. | period. | d. | frequency. |
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18.
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Water waves
a. | transport energy and water. | c. | transport water but not
energy. | b. | transport energy but not water. | d. | are not mechanical
waves. |
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19.
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The medium seismic waves travel through is
a. | a vacuum. | c. | air. | b. | rocks. | d. | energy. |
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20.
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Sound waves are
a. | transverse waves. | c. | circular waves. | b. | longitudinal waves. | d. | polarized
waves. |
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21.
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The amplitude of
the wave in the diagram above is a. | 6 m. | c. | 0.5 m. | b. | 3 m. | d. | 1 m. |
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22.
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A wave has a period of 0.25 seconds. The frequency of this wave is
a. | 25 seconds. | c. | 4 hertz. | b. | 0.25 hertz. | d. | 2 hertz. |
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23.
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A child is sending pulses down a stretched rope at a rate of 2 pulses per
second. The distance between the pulses is 5 meters. What is the speed of the wave?
a. | 5 m/s | c. | 2 Hz | b. | 10 m/s | d. | 2.5 m/s |
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24.
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The frequency of a sound wave determines
a. | the pitch of the sound. | c. | how fast the sound
travels. | b. | how loud the sound is. | d. | the magnitude of the compression. |
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25.
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A wave front is
a. | the first part of a wave. | b. | a surface made up of all the points on a wave
that have the same energy. | c. | a line connecting a crest and a
trough. | d. | the initial disturbance of the medium. |
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26.
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The differences in color in visible light, such as those in a rainbow, are
caused by differences in
a. | amplitude. | c. | medium. | b. | speed. | d. | frequency. |
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27.
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A wave x meters long has a speed of y meters per second. The
frequency of the wave is
a. | x/y. | c. | yx. | b. | y/x. | d. | y + x. |
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28.
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Sound waves
a. | require a medium. | c. | are not mechanical waves. | b. | are unrelated to
vibrations. | d. | can travel in a
vacuum. |
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29.
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Light waves are
a. | transverse waves. | c. | rotating waves. | b. | longitudinal waves. | d. | circular waves. |
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30.
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The wavelength of
the wave in the diagram above is a. | 6.0 m. | c. | 3 m. | b. | 1.5 m. | d. | 0.75 m. |
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