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Joined: May 2008
Posts: 4,707
Master Elite Member
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The Physics Classroom... When a meter stick or pencil is dropped on the floor , it vibrates with a number of frequecies producing a complex sound wave which is clanky and noisy... All objects have a natural frequency or set of frequencies at which they vibrate.... Nearly all objects, when hit or struck or plucked or strummed or somehow disturbed, will vibrate. http://www.physicsclassroom.com/Class/sound/U11L4a.html For example, any two sounds whose frequencies make a 2:1 ratio are said to be separated by an octave and result in a particularly pleasing sensation when heard; that is, two sound waves sound good when played together if one sound has twice the frequency of the other. http://www.physicsclassroom.com/Class/sound/u11l2a.html#range
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