Editing Node (physics) (section)

{{Short description|Point with minimum wave amplitude}}
{{Other uses|Node (disambiguation)}}
[[File:Standing wave.gif|thumb|300px|right|A standing wave. The red dots are the wave nodes]]

A '''node''' is a point along a [[standing wave]] where the wave has minimum [[amplitude]].  For instance, in a vibrating [[guitar]] string, the ends of the string are nodes.  By changing the position of the end node through [[frets]], the guitarist changes the effective length of the [[vibrating string]] and thereby the [[Musical note|note]] played. The opposite of a node is an '''antinode''', a point where the amplitude of the standing wave is at maximum.  These occur midway between the nodes.<ref name="Stanford">{{cite book
 | last1  = Stanford
 | first1 = A. L. 
 | last2  = Tanner
 | first2 = J. M.
 | title  = Physics for Students of Science and Engineering
 | publisher = Academic Press
 | date   = 2014
 | location = 
 | pages  = 561
 | language = 
 | url    = https://books.google.com/books?id=XONbAwAAQBAJ&dq=antinode+%22midway+between+nodes%22&pg=PA561
 | doi    = 
 | id     = 
 | isbn   = 978-1483220291
 }}</ref>