STANDING WAVES

Standing Waves

- appear to be ‘standing’ still in their left to right motion

- in constant position

Standing Waves can occur when a wave interferes with it’s reflected self

Check it out!

You need to Node this…..

You need to Node this…..

There are two main parts of the standing wave

You need to Node this…..

There are two main parts of the standing wave

Node points of complete destructive interference do not move

You need to Node this…..

There are two main parts of the standing wave

Node points of complete destructive interference do not move

You need to Node this…..

There are two main parts of the standing wave

Antinode

You need to Node this…..

There are two main parts of the standing wave

Antinode Points of complete constructive interference Largest amplitude points of the standing

wave

Harmonics

On a musical instrument, the strings are fixed at both ends

Harmonics

On a musical instrument, the strings are fixed at both ends

Harmonics

On a musical instrument, the strings are fixed at both ends

This means that there must be nodes at each end, and this limits the possible vibrations (or oscillations) of the string

Harmonics

On a musical instrument, the strings are fixed at both ends

This means that there must be nodes at each end, and this limits the possible vibrations (or oscillations) of the string

So this violin...er, viola, uhm...wierd guitar....????

In each one of these standing waves, the wavelengths produce a frequency that are known as harmonics.

The first standing wave has what is known as the fundamental frequency f.

The second standing wave has the second harmonic 2f.

The third standing wave has the third harmonic 3f.

And now…..Justin Guitar

How Harmonics Work Guitar Lesson