Problem 23Elaine N. Marieb, Katja Hoehn - 7th Edition
Textbook Question
Pitch is to frequency of sound as loudness is to
a. quality,
b. intensity,
c. overtones,
d. all of these.
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1
Understand the analogy: Pitch is related to the frequency of sound waves, which determines how high or low a sound is perceived.
Identify the characteristic that corresponds to loudness in sound: Loudness is related to the amplitude of sound waves.
Recall that amplitude is associated with the energy or power of the sound wave, which is often referred to as intensity.
Consider the options given: Quality, intensity, overtones, and all of these.
Determine which option best matches the relationship between loudness and sound characteristics, focusing on intensity as the key factor.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Pitch
Pitch refers to the perceived frequency of a sound, which determines how high or low it sounds to the listener. It is directly related to the frequency of the sound wave; higher frequencies produce higher pitches, while lower frequencies result in lower pitches. Understanding pitch is essential for distinguishing musical notes and is a fundamental aspect of sound perception.
Loudness
Loudness is the perception of the intensity of a sound, which is influenced by the amplitude of the sound wave. It describes how strong or weak a sound seems to the listener, with greater amplitudes resulting in louder sounds. Loudness is not solely determined by physical intensity; it also involves psychological factors and can vary based on the listener's hearing ability.
Introduction to the Autonomic Nervous System Example 1
Intensity
Intensity refers to the power carried by sound waves per unit area, typically measured in watts per square meter. It is an objective measure of how much energy a sound wave transmits, which correlates with loudness. Understanding intensity is crucial for analyzing sound levels in various environments, such as music, speech, and noise pollution.