{"id":27302,"date":"2022-03-18T16:34:06","date_gmt":"2022-03-18T16:34:06","guid":{"rendered":"https:\/\/www.cpge-brizeux.fr\/wordpress\/?p=27302"},"modified":"2022-03-18T16:34:06","modified_gmt":"2022-03-18T16:34:06","slug":"semaine-23-du-14-03-au-18-03","status":"publish","type":"post","link":"https:\/\/www.cpge-brizeux.fr\/wordpress\/pc\/physique-pc-2122\/semaine-23-du-14-03-au-18-03.html","title":{"rendered":"Semaine 23 : du 14\/03 au 18\/03"},"content":{"rendered":"<div style=\"border: 2px solid; border-radius: 6px; color: #dc143c; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><b><big><span style=\"color: #dc143c;\">Programme de colles de la semaine 24 du 21\/03 au 25\/03<br \/>\n<\/span><\/big><\/b><\/p>\n<p><span style=\"color: #000000;\">&#8211; <strong>Ondes 1 :<\/strong> Ondes m\u00e9caniques unidimensionnelles dans les solides d\u00e9formables (cours et exercices)\u2192 <a style=\"color: #000000;\" href=\"http:\/\/www.cpge-brizeux.fr\/wordpress\/wp-content\/uploads\/Od1_plan.pdf\">Od1_plan<\/a><\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; <strong>Ondes 2<\/strong> : Ondes acoustiques dans les fluides (cours et exercices) \u2192 <a style=\"color: #000000;\" href=\"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-content\/uploads\/Od2_plan.pdf\">Od2_plan<\/a><\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; <strong>Ondes 3<\/strong> : Ondes \u00e9lectromagn\u00e9tiques dans le vide (cours et exercices simples \/ guid\u00e9s) \u2192 <a style=\"color: #000000;\" href=\"http:\/\/www.cpge-brizeux.fr\/wordpress\/wp-content\/uploads\/Od3_plan.pdf\">Od3_plan<\/a><\/span><\/p>\n<p><span style=\"color: #000000;\">______<\/span><\/p>\n<p><span style=\"color: #000000;\">A l&rsquo;attention des interrogateurs, suggestions de questions de cours :<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Od1 : \u00c9tablir l&rsquo;\u00e9quation d&rsquo;onde pour des ondes transversales sur une corde vibrante (hypoth\u00e8ses et approximations \u00e0 citer)<\/span><\/li>\n<li><span style=\"color: #000000;\">Od1 : A l&rsquo;aide d&rsquo;un mod\u00e8le simple de solide (r\u00e9seau cubique d&rsquo;atomes reli\u00e9s par des ressorts), \u00e9tablir l&rsquo;expression du module d&rsquo;Young en fonction de la constante de raideur k et de la distance inter-atomique a : Y=k\/a.<\/span><\/li>\n<li><span style=\"color: #000000;\">Od1 : \u00c9tablir l&rsquo;\u00e9quation d&rsquo;onde pour des ondes longitudinales dans une tige solide (hypoth\u00e8ses et approximations \u00e0 citer)<\/span><\/li>\n<li><span style=\"color: #000000;\">Od1 : Citer l&rsquo;\u00e9quation de d&rsquo;Alembert. Donner l&rsquo;expression de la c\u00e9l\u00e9rit\u00e9 en fonction des param\u00e8tres de \u00ab\u00a0raideur\u00a0\u00bb et \u00ab\u00a0d&rsquo;inertie\u00a0\u00bb du milieu. Donner la forme des solutions \u00e0 privil\u00e9gier en milieu illimit\u00e9 ou limit\u00e9.<\/span><\/li>\n<li><span style=\"color: #000000;\">Od2 : \u00c9tablir l&rsquo;\u00e9quation de propagation de la surpression en lin\u00e9arisant puis combinant les 3 \u00e9quations locales (hypoth\u00e8ses et approximations \u00e0 citer)<\/span><\/li>\n<li><span style=\"color: #000000;\">Od2 : D\u00e9finir l&rsquo;imp\u00e9dance acoustique par analogie avec l&rsquo;\u00e9lectrocin\u00e9tique. Donner son unit\u00e9. BONUS : \u00e9tablir l&rsquo;expression de l&rsquo;imp\u00e9dance acoustique pour une OPPH.<\/span><\/li>\n<li><span style=\"color: #000000;\">Od2 : Donner les d\u00e9finitions et les unit\u00e9s des grandeurs suivantes : vecteur densit\u00e9 de flux de puissance acoustique (vecteur de \u00ab\u00a0Poynting\u00a0\u00bb acoustique) ; intensit\u00e9 acoustique ; niveau sonore.<\/span><\/li>\n<li><span style=\"color: #000000;\">Od3 : \u00c9tablir les \u00e9quations de propagation des champs E et B dans le vide<\/span><\/li>\n<li><span style=\"color: #000000;\">Od3 : \u00c9tablir la structure des OPPH dans le vide (4 d\u00e9monstrations + 4 conclusions)<\/span><\/li>\n<li><span style=\"color: #000000;\">Od3 : Proposer une expression du champ \u00e9lectrique pour des OPPH polaris\u00e9es elliptiquement, circulairement et rectilignement. Pr\u00e9ciser pour vos exemples (d\u00e9montrer si besoin) : la direction de propagation, le sens de polarisation (si pertinent) et la direction de polarisation (si pertinent).<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">______<\/span><\/p>\n<p><span style=\"color: #000000;\">A l&rsquo;attention des \u00e9tudiants :<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; pour la semaine prochaine : Od3 ex 3, 5 et 6<br \/>\n<\/span><\/p>\n<\/div>\n<div style=\"border: 2px solid; border-radius: 6px; color: #800080; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><span style=\"font-size: 14pt;\"><strong><span style=\"color: #800080;\">Travaux pratiques<\/span><br \/>\n<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">TP diffraction et filtrage optique<br \/>\n<\/span><\/p>\n<\/div>\n<div style=\"border: 2px solid; border-radius: 6px; color: #00008b; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><span style=\"font-size: 14pt;\"><strong>Cours<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Ondes 2 : Ondes acoustiques dans le fluides (\u2192 fin)<\/span><\/p>\n<p><span style=\"color: #000000;\">Ondes 3 : Ondes \u00e9lectromagn\u00e9tiques dans le vide (\u2192 fin)<\/span><\/p>\n<p><span style=\"color: #000000;\">Pour compl\u00e9ter le cours :<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; Structure et forme des ondes \u00e9lectromagn\u00e9tiques dans le vide : <a style=\"color: #000000;\" href=\"https:\/\/www.edumedia-sciences.com\/fr\/media\/222-onde-transverse-electro-magnetique\">ici<\/a><\/span><\/p>\n<p>https:\/\/www.edumedia-sciences.com\/fr\/media\/222-onde-transverse-electro-magnetique<\/p>\n<p><span style=\"color: #000000;\">&#8211; Visualisation d&rsquo;OPPH polaris\u00e9es :<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Linear, Circular and Elliptical Polarization Animation in a Single Shot\" width=\"593\" height=\"445\" src=\"https:\/\/www.youtube.com\/embed\/Q0qrU4nprB0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><span style=\"color: #000000;\">et<\/span><\/p>\n<p><iframe loading=\"lazy\" title=\"Circular polarization\" width=\"593\" height=\"334\" src=\"https:\/\/www.youtube.com\/embed\/Fu-aYnRkUgg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<\/div>\n<div style=\"border: 2px solid; border-radius: 6px; color: #00008b; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><span style=\"font-size: 14pt;\"><strong>Travail \u00e0 faire<br \/>\n<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Pour mercredi : Od2 ex 3 et 4<br \/>\n<\/span><\/p>\n<p><span style=\"color: #000000;\">Pour jeudi : Od2 ex 5<br \/>\n<\/span><\/p>\n<p><span style=\"color: #000000;\">Pour vendredi :<br \/>\n<\/span><\/p>\n<\/div>\n<div style=\"border: 2px solid; border-radius: 6px; color: #2e8b57; padding-top: 1px; padding-bottom: 1px; padding-left: 20px; margin: 1px;\">\n<p><b><big><span style=\"color: #2e8b57;\">Travaux dirig\u00e9s<br \/>\n<\/span><\/big><\/b><\/p>\n<p><span style=\"color: #000000;\">TD Od2 et Od3<br \/>\n<\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Programme de colles de la semaine 24 du 21\/03 au 25\/03 &#8211; Ondes 1 : Ondes m\u00e9caniques unidimensionnelles dans les solides d\u00e9formables (cours et exercices)\u2192 Od1_plan &#8211; Ondes 2 : Ondes acoustiques dans les fluides (cours et exercices) \u2192 Od2_plan&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/www.cpge-brizeux.fr\/wordpress\/pc\/physique-pc-2122\/semaine-23-du-14-03-au-18-03.html\">Read more &rarr;<\/a><\/p>\n","protected":false},"author":28,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[318],"tags":[],"class_list":["post-27302","post","type-post","status-publish","format-standard","hentry","category-physique-pc-2122"],"_links":{"self":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts\/27302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=27302"}],"version-history":[{"count":1,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts\/27302\/revisions"}],"predecessor-version":[{"id":27303,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/posts\/27302\/revisions\/27303"}],"wp:attachment":[{"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=27302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/categories?post=27302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cpge-brizeux.fr\/wordpress\/wp-json\/wp\/v2\/tags?post=27302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}