Question

in general, an increase in will cause a sensation of increased loudness. pitch wavelength speed intensity

Explanation:

• Pitch: Pitch is related to the frequency of a sound wave and determines how "high" or "low" a sound is, not its loudness.
• Wavelength: Wavelength is inversely related to frequency (\(v = f\lambda\), where \(v\) is the speed of sound, \(f\) is frequency, and \(\lambda\) is wavelength). It does not directly affect loudness.
• Speed: The speed of sound (\(v\)) in a medium (e.g., air) is a property of the medium (e.g., \(v=\sqrt{\frac{B}{

ho}}\) for sound in a fluid, where \(B\) is the bulk modulus and \(
ho\) is the density). It is not related to the perception of loudness.

• Intensity: Sound intensity (\(I=\frac{P}{A}\), where \(P\) is power and \(A\) is the area) is directly related to the perception of loudness. The human ear perceives higher - intensity sounds as louder. The decibel scale (\(L = 10\log\frac{I}{I_0}\), where \(I_0\) is the reference intensity) is used to quantify the loudness of sounds based on their intensity.

Answer:

intensity