Term
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Definition
the perceived highness or lowness of a sound, depending on the
frequency of sound waves |
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Term
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Definition
any sound consisting of waves with frequencies
higher than 20 000 Hz |
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Term
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Definition
any sound consisting of waves with frequencies
lower than 20 Hz |
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Term
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Definition
an effect in which the vibration of one object causes
the vibration of another object at a natural frequency |
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Term
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Definition
a system that uses reflected sound waves to determine the
distance to, and location of, objects |
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Term
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Definition
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Term
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Definition
the rate at which light or any other form of energy
flows through a given area of space |
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Term
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Definition
a system that uses reflected radio waves to determine the
distance to and location of objects |
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Term
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Definition
a model of light that represents light traveling through
space in an imaginary straight line |
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Term
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Definition
an image that forms at a point from
which light rays appear to come but do not actually come |
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Term
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Definition
an image of an object formed by many light rays
coming together in a specific location |
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Term
| total internal reflection |
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Definition
the compete reflection of light at the boundary between two transparent mediums
when the angle of incidence exceeds the critical angle |
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Term
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Definition
a transparent object that refracts light rays, causing them to
converge or diverge to create an image |
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Term
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Definition
a change in the size of an image
compared with the size of an object |
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Term
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Definition
| a transparent block with a triangular cross section |
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Term
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Definition
an effect in which white light separates into
component colors |
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