Science: Matter and Energy - Chapter 7

Front

What is the effect of intensity on the way the human ear perceives sound?

Back

loudness

Front

Which of the following frequency pairs would you expect to be most consonant? 128 Hz, 160 Hz (4:5), 128 Hz, 256 Hz (1:2), 160 Hz, 192 Hz (5:6), 192 Hz, 256 Hz (3:4)

Back

128 Hz, 256 Hz (1:2)

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Front

What is the result when two notes interfere harmoniously?

Back

consonance

Front

What term describes a situation in which a driving frequency on an object is the same as or nearly the same as one of the object's natural frequencies?

Back

resonance

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Front

What is the substance through which a wave transfers its energy?

Back

medium

Front

What term refers to sound that has too low a frequency to be heard?

Back

infrasonic

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Front

What technique uses the reflection of sound to calculate distance?

Back

echo ranging

Front

What is the reinforcement or cancellation that occurs when two or more sound waves meet?

Back

interference

Front

Which property is directly proportional to wave speed?

Back

wavelength

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Front

What is the relationship between sound intensity and distance?

Back

Intensity is inversely proportional to the square of distance.

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