Completion
Complete each sentence or
statement.
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1.
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In a
gas, such as air, an increase in temperature results in a(n) ____________________ in the speed of
sound.
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2.
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The
greater the ____________________ of a sound wave, the louder the sound.
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3.
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A
high-pitched sound results when a string or a column of air ____________________.
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4.
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The
note A-natural sounds different on a tuning fork, a violin, and a flute because of the relative
amplitudes of ____________________.
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5.
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Resonance occurs when the vibration of one object causes another object to vibrate at
a(n) ____________________.
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6.
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The
three small bones in your middle ear are the ____________________, the ____________________, and the
____________________.
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7.
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In
your inner ear, different parts of the ____________________ vibrate at different natural
frequencies.
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8.
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Sound
waves with frequencies higher than 20 000 Hz are referred to as ____________________
waves.
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9.
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Sonograms are possible because some ultrasound waves are ____________________ when
they pass from one type of material to another.
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10.
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The
two most common models of light describe it as a wave or as a stream of
____________________.
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11.
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In
the particle model of light, individual "packets" of light are called
____________________.
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12.
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The
energy of light is proportional to the ____________________ of the corresponding
____________________.
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13.
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The
amount of light that illuminates a given surface area is referred to as
____________________.
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14.
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In a
vacuum, all light travels at the same speed, which is ____________________.
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15.
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All
possible kinds of light, at all energies, frequencies, and wavelengths, make up the
____________________.
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16.
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The
electromagnetic waves with the highest energy and shortest wavelengths are classified as
____________________.
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17.
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____________________ are used for cooking as well as for communication.
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18.
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A(n)
____________________ sensor can be used to measure the heat that objects radiate.
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19.
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Reflection of light into random directions is called ____________________
reflection.
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20.
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The
theoretical line perpendicular to the surface where light hits a mirror is called the
____________________.
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21.
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The
law of reflection states that the angle of ____________________ is the same as the angle of
____________________.
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22.
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The
image that you see in a mirror that results from the apparent path of light rays is called a(n)
____________________ image.
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23.
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In
a(n) ____________________ image, light rays really exist at the point where the image
appears.
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24.
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Colors that combine to produce white are called ____________________
colors.
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25.
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Colors that combine to create magenta, cyan, or yellow are called ____________________
colors.
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26.
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An
object looks red if it ____________________ red light and ____________________ all other
colors.
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27.
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White
light actually contains all the visible wavelengths of the ____________________.
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28.
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Light
may bend when it changes mediums because ____________________ is different in each
medium.
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29.
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If a
light moves from a material in which its speed is lower to one in which its speed is higher, the ray
is bent away from the ____________________.
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30.
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Light
inside a fiber optic cable bounces off the walls of the fiber because of ____________________
reflection.
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31.
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A
lens that bends light inward is called a(n) ____________________ lens.
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32.
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A
lens that bends light outward is called a(n) ____________________ lens.
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33.
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Light
first enters the eye through a transparent tissue called the ____________________.
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34.
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The
cone cells in the eye allow ____________________ vision, and the rod cells are more sensitive to
____________________ light.
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35.
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A
transparent object that can separate white light into different colors is called a(n)
____________________.
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36.
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The
effect in which light separates into different colors because of differences in speed is called
____________________.
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