W : Build on studentsâ knowledge of literary elements by explaining how to draw conclusions, including determining the theme, based on information in folklore. H : Engage students by using the story Goldilocks and the Three Bears to model how to draw conclusions based on text.
For a signal whose fundamental frequency is f, the second harmonic has a frequency 2 f, the third harmonic has a frequency of 3 f, and so on. Let w represent the wavelength of the signal or wave in a specified medium. The second harmonic has a wavelength of w /2, the third harmonic has a wavelength of w /3, and so on.
The Frequency Relationships Between the Modes. If the fundamental frequency for a string is 100 Hz, the first harmonic, or next vibrational mode, would be at 200 Hz. This makes sense as the string is exactly 1/2 the length and therefore would vibrate twice as rapidly. This second vibrational mode of the string is called the second harmonic and is exactly twice the frequency of the fundamental.