Can you measure sound?

Sound is measured in several ways:
frequency, wavelength and amplitude. Sound
waves vibrate at different rates. These are
called frequencies, measured in cycles per
second or Hertz (Hz). 1 Hertz = 1 vibration
per second. A wavelength measures the
length of one cycle. Longer wavelengths
have a lower pitch. The lowest tones that a
human can catch are about 16 vibrations
per second, or 16 Hz. Amplitude measures
how loud the sound is. A sound wave of high
amplitude will produce a
louder sound. It is measured
in decibels (Db).