[size=85][size=100][size=150][color=#ff7700]I moti ondulatori[/color][br][color=#00ff00]Un oggetto gettato da riva nell'acqua di un lago genera un'increspatura circolare che si allarga sempre di più. L'impatto dell'onda con un tappo di sughero o con qualsiasi altro oggetto che galleggia sull'acqua [/color][/size][size=150][color=#00ff00], l'increspatura lo solleva senza trasportarlo.[/color][br][br][br][br][/size][/size][size=150][color=#00ff00]La perturbazione si muove verso l'esterno;[br][/color][br][img]data:image/jpeg;base64,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[/img][br][color=#00ff00]Un tappo che galleggia sull'acqua si sposta su e giù in verticale, cosi anche le molecole dell'acqua oscillano in su e giù, ma non si spostano verso l'esterno.[br][/color][br]Definizione di onda:[/size][br][br][size=100][size=150][i]Un'onda è una perturbazione che si propaga trasportando energia e quantità di moto,ma non materia[br][br][br][/i][color=#ff7700]Onde trasversali e longitudinali[br][br][br][/color][/size][/size][img]data:image/jpeg;base64,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[/img][size=150]Si ha:[/size][br][br][size=150]1. [u][i]un'[b]onda trasversale [/b]quando gli elementi del mezzo materiale si spostano perpendicolarmente alla direzione lungo cui si propaga l'onda;[/i][/u][br][br]2. [u][i]un'[b]onda longitudinale[/b][/i] [i]quando si spostano nella stessa direzione dell'onda.[/i][/u][br][/size][br][br][size=100][size=150][color=#ff7700]I vari tipi di onde[/color][br][br][i][u]Un[/u]'[/i][i][b][u]onda elastica[/u][/b][/i] [u]è un'onda che si propaga attraverso un mezzo materiale grazie alle proprietà elastiche del mezzo; sono onde elastiche: quelle del terremoto (onde sismiche), e le onde sonore.[br][br][/u][color=#ff7700]Le onde periodiche[br][br][br][/color][img]data:image/png;base64,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[/img][br]profilo dell'onda[br][/size][/size][size=100][b][u][i][color=#222222][size=200][size=150]La lunghezza d'onda di un'onda periodica è la distanza fra due creste o fra due ventri della sua forma d'onda e viene comunemente indicata dalla [/size][/size][size=150]lettera greca[/size] [/color] [size=150]λ [/size][/i][/u][/b][size=150][b][u][i]( lambda).[/i][/u][/b][br][br][/size][i][u]L'ampiezza di un'onda periodicaè l'altezza di una sua cresta.[/u][/i][size=150][br][br][i][u]Un'onda periodica è un'onda la cui sorgente compie un moto periodico e il cui profilo si ripete uguale a distanze regolari.[/u][/i][br][br][u][i]Però il profilo di 'un'onda periodica non è sempre sinusoidale; lo è soltanto se la sorgente oscilla di moto armonico, ossia se l'onda è armonica.[br][br][br][/i][/u][br][/size][/size][size=100][size=150][color=#ff7700]Il periodo,la frequenza e la velocità di propagazione[br][br][br][br][/color][/size][/size][img]data:image/png;base64,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[/img][br][br][img]https://wikimedia.org/api/rest_v1/media/math/render/svg/bf93852a54e9fc2ea9aa92619a055f66b7e8817b[/img][size=100][size=150][i][u]La[b] frequenza [/b]f è il numero di oscillazioni che, nel punto fissato, l'onda compie nell'unità di tempo, cioè in 1 s.[br][/u][/i][/size][/size][/size][i][size=100][size=150]Si misura in hertz (Hz)[br][br]1 Hertz significa una oscillazione al secondo[br][/size][/size][br][br][br][br][u]La [/u][b][u]velocità di propagazione dell'onda[/u][/b] [u]è la velocità con cui l'oscillazione si sposta nella direzione di propagazione[/u][br][br][br][br][img]http://www.sapere.it/mediaObject/studiafacile/images/fisica/e20_02/original/e20_02.gif[/img][br][br][br]v=[i][b] [/b]λ f[br][br][/i][/i][u][i][size=150]Quindi, la velocità di propagazione dipende dalle proprietà del mezzo materiale attraversato dall'onda[/size][/i][/u]