Test: MCAT Physical

At a local concert, a speaker is set up to produce low-pitched base sounds with a frequency range of 20Hz to 200Hz, which can be modeled as  sine waves. In a simplified model, the sound waves the speaker produces can be modeled as a cylindrical pipe with one end closed that travel through the air at a velocity of , where T is the temperature in °C.

1.

If the sound crew wanted to quadruple the intensity of the sound, they could __________.

halve the air density

halve the amplitude of the sound wave

double the amplitude of the sound wave

halve the frequency of the sound wave

1/3 questions

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