{"id":255,"date":"2025-10-01T15:00:32","date_gmt":"2025-10-01T13:00:32","guid":{"rendered":"https:\/\/yb-isn.fr\/2025\/spc\/?p=255"},"modified":"2025-12-09T08:36:42","modified_gmt":"2025-12-09T07:36:42","slug":"effet-doppler","status":"publish","type":"post","link":"https:\/\/yb-isn.fr\/2025\/spc\/?p=255","title":{"rendered":"13-Activit\u00e9s-Effet Doppler"},"content":{"rendered":"\n<marquee> Corrig\u00e9s des activit\u00e9s et un qcm pour r\u00e9viser<\/marquee>\n\n\n\n<div width='100%' height='100%'> \n<p style='margin-top: 0.2em; color: #999999;'> \nVoir l&rsquo;animation <a href='http:\/\/www.cea.fr\/multimedia\/Pages\/animations\/physique-chimie\/quiz-effet-Doppler.aspx' style='color: #666666' target='_blank'>Quiz Doppler<\/a> sur <a href='http:\/\/www.cea.fr\/multimedia\/Pages\/animations\/physique-chimie\/quiz-effet-Doppler.aspx' style='color: #999999' target='_blank'>http:\/\/www.cea.fr\/multimedia\/Pages\/animations\/physique-chimie\/quiz-effet-Doppler.aspx<\/a><\/p> \n<\/div> \n\n\n\n<p><\/p>\n\n\n\n<p>Ci dessous les liens vers 4 activit\u00e9s sur l&rsquo;effet Doppler.<\/p>\n\n\n\n<p class=\"has-black-color has-pale-ocean-gradient-background has-text-color has-background has-link-color wp-elements-2737e34b76ee96b71cc674f40c2371d7\">1) le canard super sonic<\/p>\n\n\n\n<p>Animation<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/yb-isn.fr\/doppler\/index.html\"><img loading=\"lazy\" decoding=\"async\" width=\"540\" height=\"478\" src=\"https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-2.png\" alt=\"\" class=\"wp-image-321\" style=\"width:245px;height:auto\" srcset=\"https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-2.png 540w, https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-2-300x266.png 300w\" sizes=\"auto, (max-width: 540px) 100vw, 540px\" \/><\/a><\/figure>\n\n\n\n<p><a href=\"https:\/\/capytale2.ac-paris.fr\/web\/c\/7b4d-7492500\">Activit\u00e9 sur capytale<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/capytale2.ac-paris.fr\/web\/c\/f948-7656168\">Corrig\u00e9 de l&rsquo;activit\u00e9<\/a><\/p>\n\n\n\n<p class=\"has-black-color has-pale-ocean-gradient-background has-text-color has-background has-link-color wp-elements-b32ca7f53d2b9fc287f6abf9448c6588\">2) Klaxon d&rsquo;une voiture en mouvement<\/p>\n\n\n\n<center>\n<iframe loading=\"lazy\"\n  width=\"800\"\n  height=\"450\"\n  src=\"https:\/\/www.youtube-nocookie.com\/embed\/P8wx2ckyENk\"\n  title=\"Effet Doppler \u2013 Klaxon de voiture\"\n  frameborder=\"0\"\n  allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\"\n  allowfullscreen>\n<\/iframe>\n<\/center>\n<br>\n\n<center><b>Si vous ne maitrisez pas l&rsquo;anglais vous pouvez ajouter les sous titres en Fran\u00e7ais.<\/b><\/center>\n\n\n\n<p><a href=\"https:\/\/capytale2.ac-paris.fr\/web\/c\/f3a0-7492505\">Activit\u00e9 sur capytale<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/capytale2.ac-paris.fr\/web\/c\/07ee-7656166\">Corrig\u00e9 de l&rsquo;activit\u00e9<\/a><\/p>\n\n\n\n<p class=\"has-black-color has-pale-ocean-gradient-background has-text-color has-background has-link-color wp-elements-1315a37ecb351f535b0295a8c65fdae0\">3) Le son fait sa r\u00e9volution<\/p>\n\n\n\n<p>Un son pur est envoy\u00e9 \u00e0 une enceinte bluetooth . l&rsquo;enceinte est immobile dans un premier temps puis mise en rotation dans un plan vertical .<\/p>\n\n\n\n<p>L&rsquo;exp\u00e9rience sera r\u00e9alis\u00e9e en classe.<\/p>\n\n\n\n<p>Un smartphone filme le mouvement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"932\" height=\"606\" src=\"https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-3.png\" alt=\"\" class=\"wp-image-322\" style=\"width:328px;height:auto\" srcset=\"https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-3.png 932w, https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-3-300x195.png 300w, https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-3-768x499.png 768w\" sizes=\"auto, (max-width: 932px) 100vw, 932px\" \/><\/figure>\n\n\n\n<p><br><a href=\"sch\u00e9ma du dispositif\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p>Le rayon du cercle mesur\u00e9 \u00e0 partir du centre de l&rsquo;enceinte est \u00e9gal \u00e0 80cm.<br>ci-dessous les enregistrements vid\u00e9o<\/p>\n\n\n\n<p><a href=\"https:\/\/yb-isn.fr\/video-spe-phy\/fixe2000.mp4\">\u25b6\ufe0f enceinte fixe<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/yb-isn.fr\/video-spe-phy\/rotation2000.mp4\">\u25b6\ufe0f enceinte en rotation<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/capytale2.ac-paris.fr\/web\/c\/8a91-7492483\">Activit\u00e9 sur capytale<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/capytale2.ac-paris.fr\/web\/c\/c5ba-7656162\">Corrig\u00e9 de l&rsquo;activit\u00e9<\/a><\/p>\n\n\n\n<p class=\"has-black-color has-pale-ocean-gradient-background has-text-color has-background has-link-color wp-elements-542a357aa0b03477e0f9cb8aad0d41b7\">4) La chevelure de B\u00e9r\u00e9nice (activit\u00e9 g\u00e9n\u00e9r\u00e9e par une IA \u00e0 partir de donn\u00e9es r\u00e9elles)<\/p>\n\n\n\n<p>La lumi\u00e8re provenant de ces galaxies est collect\u00e9e par le t\u00e9lescope puis focalis\u00e9e.<\/p>\n\n\n\n<p>En la faisant passer dans un spectroscope, on peut la d\u00e9composer en spectre.<\/p>\n\n\n\n<p>On pointe un t\u00e9lescope vers l\u2019amas de Coma, situ\u00e9 dans la constellation de la Chevelure de B\u00e9r\u00e9nice \u00e0 environ 320 millions d\u2019ann\u00e9es-lumi\u00e8re de la Terre. Cet amas contient plusieurs milliers de galaxies.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"889\" src=\"https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-4.png\" alt=\"\" class=\"wp-image-325\" style=\"width:336px;height:auto\" srcset=\"https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-4.png 1024w, https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-4-300x260.png 300w, https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-4-768x667.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><a href=\"berenice\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><br><\/p>\n\n\n\n<p>On observe le spectre d\u2019une galaxie de l\u2019amas de Coma (Chevelure de B\u00e9r\u00e9nice).<\/p>\n\n\n\n<p>Certaines raies d\u2019absorption de l\u2019hydrog\u00e8ne apparaissent d\u00e9cal\u00e9es vers le rouge par rapport \u00e0 leurs valeurs au repos.<\/p>\n\n\n\n<p>Raies au repos (laboratoire) :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>H\u03b1 : \u03bb\u2080 = 656,28 nm<\/li>\n\n\n\n<li>H\u03b2 : \u03bb\u2080 = 486,13 nm<\/li>\n<\/ul>\n\n\n\n<p>Spectres fournis (g\u00e9n\u00e9r\u00e9s par l&rsquo;IA)<br>Spectre de r\u00e9f\u00e9rence (repos, raies H\u03b1 et H\u03b2) :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-5-1024x576.png\" alt=\"\" class=\"wp-image-326\" srcset=\"https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-5-1024x576.png 1024w, https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-5-300x169.png 300w, https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-5-768x432.png 768w, https:\/\/yb-isn.fr\/2025\/spc\/wp-content\/uploads\/2025\/10\/image-5.png 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><a href=\"sch\u00e9ma du dispositif\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/capytale2.ac-paris.fr\/web\/c\/c838-7492489\">Activit\u00e9 sur capytale<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/capytale2.ac-paris.fr\/web\/c\/1be5-7656164\">Corrig\u00e9 de l&rsquo;activit\u00e9<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Corrig\u00e9s des activit\u00e9s et un qcm pour r\u00e9viser Voir l&rsquo;animation Quiz Doppler sur http:\/\/www.cea.fr\/multimedia\/Pages\/animations\/physique-chimie\/quiz-effet-Doppler.aspx Ci dessous les liens vers 4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-255","post","type-post","status-publish","format-standard","hentry","category-tp"],"_links":{"self":[{"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=\/wp\/v2\/posts\/255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=255"}],"version-history":[{"count":19,"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=\/wp\/v2\/posts\/255\/revisions"}],"predecessor-version":[{"id":345,"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=\/wp\/v2\/posts\/255\/revisions\/345"}],"wp:attachment":[{"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yb-isn.fr\/2025\/spc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}