Frequency: The number of repetitions of vibrations in a specific amount of time, measured in hertz.

Resources for this term:
What Are the Causes and Effects of Noise Pollution?
What Are the Causes and Effects of Noise Pollution?

This 8th grade physical science module is structured around students’ background knowledge of the characteristics of mechanical longitudinal waves, including amplitude (decibels), frequency (hertz), compressions, rarefactions, pitch, loudness, wavelength, and speed. Here, students apply their knowledge to noise pollution and the effects it has on marine animals. They read articles about noise pollution and, using Task Template 24, construct an essay to determine if government regulations are needed to deter future noise pollution.

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