True/False
Indicate whether the sentence or statement is true
or false.
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1.
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total
internal reflection ? an image of an object formed by many light rays coming together ina specific
location
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2.
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resonance ? a system that uses reflected sound waves to determin the distance to, and
location of, objects
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3.
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intensity ? the rate at which light or any other form of energy flows through a
given area of space
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4.
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pitch
? a particle of light
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5.
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sonar
? a system that uses reflected radio waves to determine the distance to and location of
objects
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6.
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infrasound ? any sound consisting of waves with frequenciess lower than 20
Hz
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7.
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radar ? a system that uses reflected radio waves to determine the distance to
and location of objects
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8.
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virtual image ? an image of an object formed by many light rays coming together ina
specific location
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9.
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ultrasound ? any sound consisting of waves with frequencies higher than 20,000
Hz
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10.
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photon ? the preceived highness or lowness of a sound, dependiing on the frequency of
sound waves
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11.
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real
image ? an image that forms at a point from which light rays appear t come but do not acutally
come
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12.
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light ray ? a modeol of light that represents light traveling through space in
an imaginary straight line
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