Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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A
mass attached to a spring vibrates back and forth. At maximum displacement, the spring force and
the a. | velocity reach a
maximum. | c. | acceleration
reach a maximum. | b. | velocity reach zero. | d. | acceleration reach zero. | | | | |
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2.
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Which
of the following is the time it takes to complete a cycle of motion? a. | amplitude | c. | frequency | b. | period | d. | revolution | | | | |
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3.
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A
musical tone sounded on a piano has a frequency of 410 Hz and a wavelength of 0.80 m. What is the
speed of the sound wave? a. | 170 m/s | c. | 330 m/s | b. | 240
m/s | d. | 590
m/s | | | | |
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4.
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A
student sends a pulse traveling on a taut rope with one end attached to a post. What will the student
observe? a. | The pulse will
not be reflected if the rope is free to slide up and down on the post. | b. | The pulse will
be reflected and inverted if the rope is free to slide up and down on the
post. | c. | The pulse will be reflected and inverted if the rope is fixed
to the post. | d. | The pulse will not be inverted if the rope is fixed to the
post. | | |
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5.
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How
high or low we perceive a sound to be, depending on the frequency of the sound wave, is defined as
the a. | infrasonic
wave. | c. | ultrasonic
wave. | b. | frequency. | d. | pitch. | | | | |
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6.
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The
Doppler effect occurs with a. | only sound waves. | c. | only water waves. | b. | only
compressional waves. | d. | all
waves. | | | | |
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7.
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The
effects of sound on the ear are loudness, pitch, and quality. Loudness is an effect of ____, pitch is
an effect of ____, and timbre is an effect of ____. a. | intensity;
harmonic content; frequency | c. | frequency;
intensity; harmonic content | b. | harmonic content; frequency;
intensity | d. | intensity;
frequency; harmonic content | | | | |
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8.
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What
phenomenon is created by two tuning forks side by side that emit frequencies that differ by only a
small amount? a. | resonance | c. | the Doppler
effect | b. | interference | d. | beats | | | | |
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9.
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If
you know the wavelength of any form of electromagnetic radiation, you can determine its frequency
because a. | all wavelengths
travel at the same speed. | b. | the speed of light varies for each
form. | c. | wavelength and frequency are equal. | d. | the speed of
light increases as wavelength increases. | | |
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10.
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If
you are reading a book and you move twice as far away from the light source, how does the brightness
at the new distance compare with that at the old distance? It is a. | one-eighth | c. | one-half | b. | one-fourth | d. | twice | | | | |
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11.
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In
the diagram above, the image of object B would be a. | virtual,
enlarged, and inverted. | c. | virtual,
reduced, and upright. | b. | real, enlarged, and upright. | d. | virtual, enlarged, and upright. | | | | |
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12.
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In
the diagram above, the image of object B would be a. | real, reduced,
and upright. | c. | virtual,
reduced, and inverted. | b. | virtual, enlarged, and upright. | d. | virtual, reduced, and upright. | | | | |
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13.
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Refraction is the term for the bending of a wave disturbance as it passes at an angle
from one ____ into another. a. | glass | c. | area | b. | medium | d. | boundary | | | | |
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14.
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When
a light ray passes from water (n = 1.333) into diamond (n = 2.419) at an angle of
45°, its path
is |