The Auschwitz concentration camp complex was the largest of its kind established by the Nazi regime. It included three main camps. All three camps used prisoners for forced labor. One of them also functioned for an extended period as a killing center. The camps were located approximately 37 miles west of Krakow.
The frequency of a sound wave determines what people hear as pitch. A higher frequency has a higher pitch, and a lower frequency is heard as a lower pitch. The frequencies that humans can hear range from 20 to 20,000 Hertz. Continue Reading.
Our perception of sound is directly related to the physical properties of sound waves (see Figure 3.7). One of the ï¬ rst things that we notice about a sound is how loud it is. Loudness is determined by the intensity, or amplitude, of a sound wave and is measured in units called decibels. Zero decibels represents the loudness of the softest sound that humans can hear, or the absolute threshold for hearing. As decibels increase, per-ceived loudness increases. Pitch refers to the relative âhighnessâ or âlownessâ of a sound. Pitch is determined by the frequency of a sound wave. Frequency refers to the rate of vibration, or number of waves per second, and is measured in units called hertz. Hertz simply refers to the num- ber of wave peaks per second.