{"id":1650,"date":"2021-01-07T15:02:47","date_gmt":"2021-01-07T14:02:47","guid":{"rendered":"http:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/?p=1650"},"modified":"2021-01-07T15:02:47","modified_gmt":"2021-01-07T14:02:47","slug":"tp-mesures-de-son","status":"publish","type":"post","link":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/2021\/01\/07\/tp-mesures-de-son\/","title":{"rendered":"TP mesures de son"},"content":{"rendered":"<p>Voici un TP qui permet de mesurer la vitesse du son et la hauteur d&#8217;une chute verticale, avec l&#8217;application phyphox&#8230;<\/p>\n<a href=\"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-content\/uploads\/2021\/01\/Chute-verticale-et-vitesse-de-son.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"bottom\" data-toolbar-fixed=\"off\">Chute verticale et vitesse de son<\/a>\n<p>&nbsp;<\/p>\n<p>Voici quelques \u00e9l\u00e9ments de r\u00e9ponse\u00a0:<\/p>\n<p>j\u2019ai r\u00e9alis\u00e9 les mesures pour une hauteur h=89,5cm, j\u2019ai obtenu les Dt suivants, en seconde\u00a0: 0,446\/0,531\/0,467\/0,484\/0,472\/0,459\/0,483\/0,459\/0,466\/0,476<\/p>\n<p>soit Dt<sub>moy<\/sub>=0,4773s<\/p>\n<p>donc h=1\/2&#215;9.8&#215;0,4773\u00b2=1,1m<\/p>\n<p>la diff\u00e9rence de h trouv\u00e9e peut s\u2019expliquer par\u00a0:<\/p>\n<ul>\n<li>les bruits environnant<\/li>\n<li>la pi\u00e8ce qui ne tombe pas toujours \u00e0 plat et donc modifie la valeur de h<\/li>\n<li>le mauvais d\u00e9clenchement<\/li>\n<li>les frottements<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Voici un TP qui permet de mesurer la vitesse du son et la hauteur d&#8217;une chute verticale, avec l&#8217;application phyphox&#8230; &nbsp; Voici quelques \u00e9l\u00e9ments de r\u00e9ponse\u00a0: j\u2019ai r\u00e9alis\u00e9 les mesures pour une hauteur h=89,5cm, j\u2019ai obtenu les Dt suivants, en seconde\u00a0: 0,446\/0,531\/0,467\/0,484\/0,472\/0,459\/0,483\/0,459\/0,466\/0,476 soit Dtmoy=0,4773s donc h=1\/2&#215;9.8&#215;0,4773\u00b2=1,1m la diff\u00e9rence de h trouv\u00e9e peut s\u2019expliquer par\u00a0: les &hellip; <a href=\"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/2021\/01\/07\/tp-mesures-de-son\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">TP mesures de son<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58,23],"tags":[],"class_list":["post-1650","post","type-post","status-publish","format-standard","hentry","category-physique-chimie","category-tp-et-calculs"],"_links":{"self":[{"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/posts\/1650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/comments?post=1650"}],"version-history":[{"count":1,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/posts\/1650\/revisions"}],"predecessor-version":[{"id":1652,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/posts\/1650\/revisions\/1652"}],"wp:attachment":[{"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/media?parent=1650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/categories?post=1650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/tags?post=1650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}