5.35. Frequency and Pitch of Sound http://www.ck12.org
Vocabulary
- infrasound: Sound with a frequency below the range of human hearing (less than 20 hertz).
- pitch: How high or low a sound seems to a listener.
- ultrasound: Sound with a frequency above the range of human hearing (greater than 20,000 hertz).
- wave frequency: Number of waves that pass a fixed point in a given amount of time.
Explore More
At the following URL, complete the interactive module to review and test your knowledge of the frequency and pitch
of sound. http://www.engineeringinteract.org/resources/oceanodyssey/flash/concepts/pitch.htm
Review
- What is the pitch of sound?
- How is the pitch of sound related to the frequency of sound waves?
- Define infrasound and ultrasound.