{"id":13362,"date":"2026-03-07T11:40:32","date_gmt":"2026-03-07T10:40:32","guid":{"rendered":"https:\/\/www.evoluscience.fr\/?page_id=13362"},"modified":"2026-03-08T20:52:15","modified_gmt":"2026-03-08T19:52:15","slug":"activite-2","status":"publish","type":"page","link":"https:\/\/www.evoluscience.fr\/index.php\/sixieme\/partie-2\/chapitre-2-les-mouvements-dans-le-systeme-solaire\/activite-2\/","title":{"rendered":"Activit\u00e9 2"},"content":{"rendered":"\n<p class=\"has-vivid-green-cyan-color has-text-color has-link-color wp-elements-a7f2975b2433f44ec638cba1c9558df3 wp-block-paragraph\">Comment est pr\u00e9cis\u00e9ment le mouvement d\u2019une fus\u00e9e entre son d\u00e9collage et son d\u00e9placement dans l\u2019espace ?<\/p>\n\n\n\n<p class=\"has-background wp-block-paragraph\" style=\"background-color:#ffbc8c\">Activit\u00e9 2&nbsp;: Le mouvement d\u2019une fus\u00e9e d\u00e9collant de la Terre<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Comp\u00e9tences travaill\u00e9es&nbsp;:<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>Comprendre le langage scientifique<\/em><\/li>\n\n\n\n<li><em>S\u2019informer \u00e0 partir d\u2019un graphique<\/em><\/li>\n<\/ul>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Voici une vid\u00e9o pour expliquer rapidement le d\u00e9collage d&rsquo;une fus\u00e9e (Ariane 5) :<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.lumni.fr\/video\/decollage-d-une-fusee-principe-d-action-et-reaction\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1019\" height=\"583\" src=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-1.png\" alt=\"\" class=\"wp-image-13371\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-1.png 1019w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-1-300x172.png 300w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-1-768x439.png 768w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-1-520x298.png 520w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-1-740x423.png 740w\" sizes=\"auto, (max-width: 1019px) 100vw, 1019px\" \/><\/a><\/figure>\n<\/div>\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Etude de la vitesse de d\u00e9collage d\u2019une fus\u00e9e (ici Ariane 5)\u00a0:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"643\" height=\"317\" src=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-2.png\" alt=\"\" class=\"wp-image-13374\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-2.png 643w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-2-300x148.png 300w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-2-520x256.png 520w\" sizes=\"auto, (max-width: 643px) 100vw, 643px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Chronophotographie du d\u00e9but du d\u00e9collage de la fus\u00e9e Ariane 5<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"350\" height=\"268\" src=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-3.png\" alt=\"\" class=\"wp-image-13375\" style=\"aspect-ratio:1.3060462946766953;width:640px;height:auto\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-3.png 350w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/image-3-300x230.png 300w\" sizes=\"auto, (max-width: 350px) 100vw, 350px\" \/><\/figure>\n<\/div>\n\n\n<ol class=\"wp-block-list\">\n<li>Avant le d\u00e9collage, comment est la fus\u00e9e (en terme de d\u00e9placement) ?<\/li>\n\n\n\n<li>Indiquer la vitesse de d\u00e9placement de la fus\u00e9e 0,60s apr\u00e8s le d\u00e9collage ? 1,4s apr\u00e8s le d\u00e9collage ? 2,2s apr\u00e8s le d\u00e9collage ?<\/li>\n\n\n\n<li>Que remarque-t-on concernant l&rsquo;\u00e9volution de cette vitesse ?<\/li>\n<\/ol>\n\n\n\n<div style=\"height:78px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Maintenant, l&rsquo;Union Europ\u00e9enne a construit derni\u00e8rement Ariane 6.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Remarque : Les fus\u00e9es sont des moyens de transport pour amener un\u00a0<a href=\"https:\/\/cnes.fr\/node\/406\">satellite<\/a>, une sonde (ou une capsule avec des spationautes) dans l\u2019espace. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une fois sortie de l&rsquo;atmosph\u00e8re, elle a perdu diff\u00e9rentes parties et elle ne peut plus revenir sur Terre : Son usage est unique.<\/p>\n\n\n\n<div style=\"height:72px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">4. Donner un exemple d&rsquo;objet en mouvement acc\u00e9l\u00e9r\u00e9, un exemple d&rsquo;objet en mouvement ralenti et un exemple d&rsquo;objet en mouvement dont la vitesse est constante.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/www.evoluscience.fr\/index.php\/sixieme\/partie-2\/chapitre-2-les-mouvements-dans-le-systeme-solaire\/activite-2\/conclusion\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"538\" height=\"538\" src=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion.png\" alt=\"\" class=\"wp-image-370\" style=\"width:366px;height:auto\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion.png 538w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion-150x150.png 150w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion-300x300.png 300w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion-520x520.png 520w\" sizes=\"auto, (max-width: 538px) 100vw, 538px\" \/><\/a><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2026\/03\/6-P2-Chp2Act2-FC.pdf\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"735\" height=\"735\" src=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1.png\" alt=\"\" class=\"wp-image-4366\" style=\"width:379px;height:auto\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1.png 735w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1-300x300.png 300w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1-150x150.png 150w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1-520x520.png 520w\" sizes=\"auto, (max-width: 735px) 100vw, 735px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comment est pr\u00e9cis\u00e9ment le mouvement d\u2019une fus\u00e9e entre son d\u00e9collage et son d\u00e9placement dans l\u2019espace ? Activit\u00e9 2&nbsp;: Le mouvement d\u2019une fus\u00e9e d\u00e9collant de la Terre Comp\u00e9tences travaill\u00e9es&nbsp;: Voici une vid\u00e9o pour expliquer rapidement le<a class=\"read-more\" href=\"https:\/\/www.evoluscience.fr\/index.php\/sixieme\/partie-2\/chapitre-2-les-mouvements-dans-le-systeme-solaire\/activite-2\/\">Continue reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":13270,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-13362","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/pages\/13362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/comments?post=13362"}],"version-history":[{"count":0,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/pages\/13362\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/pages\/13270"}],"wp:attachment":[{"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/media?parent=13362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}