{"id":3707,"date":"2023-01-09T10:18:49","date_gmt":"2023-01-09T10:18:49","guid":{"rendered":"https:\/\/9thclass.deltapublications.in\/?page_id=3707"},"modified":"2025-08-12T07:19:27","modified_gmt":"2025-08-12T07:19:27","slug":"s-9-f-conservation-of-momentum","status":"publish","type":"page","link":"https:\/\/9thclass.deltapublications.in\/index.php\/s-9-f-conservation-of-momentum\/","title":{"rendered":"S-9.f Conservation Of Momentum"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Conservation Of Momentum<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"471\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-32.png\" alt=\"\" class=\"wp-image-10238\" style=\"width:482px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-32.png 886w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-32-300x159.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/09\/image-32-768x408.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure><\/div>\n\n\n<div class=\"wp-block-group has-large-font-size\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes:<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-521bc0581d3b6e5e10bf6c4ee9ce4cd2\" style=\"color:#000060\"><strong>Definition of Momentum<\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"579\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123801.240-1024x579.png\" alt=\"\" class=\"wp-image-17364\" style=\"width:521px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123801.240-1024x579.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123801.240-300x170.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123801.240-768x434.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123801.240.png 1472w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p><strong>Momentum<\/strong> is defined as the product of an object&#8217;s mass and its velocity.<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Formula: p = m \u00d7 v<\/li>\n\n\n\n<li><strong>p<\/strong> = momentum<\/li>\n\n\n\n<li><strong>m<\/strong> = mass<\/li>\n\n\n\n<li><strong>v<\/strong> = velocity<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-766e7d3267d1bb594ddc4b1dc1bdf01d\" style=\"color:#000060\"><strong>Law of Conservation of Momentum<\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"579\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123925.707-1024x579.png\" alt=\"\" class=\"wp-image-17365\" style=\"width:496px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123925.707-1024x579.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123925.707-300x170.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123925.707-768x434.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T123925.707.png 1472w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>States that in a closed system, the total momentum remains constant if no external forces act on it.<\/li>\n\n\n\n<li>This means the total momentum before an event (collision or explosion) is equal to the total momentum after the event.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-216ca90e29932a5b68fe09812e29b28a\" style=\"color:#000060\"><strong>Mathematical Expression<\/strong><\/h3>\n\n\n\n<p>For two objects in a system:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Before collision: <sub>ptotal<\/sub> = p1+p2<\/li>\n\n\n\n<li>After collision: <sub>p\u2032total<\/sub> = p\u20321+p\u20322<\/li>\n\n\n\n<li>If no external forces: <sub>ptotal<\/sub> = p\u2032total<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-92c40ba01b654b840a64fb7aec9a7419\" style=\"color:#000060\"><strong>Types of Collisions<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Elastic Collision<\/strong>: Both momentum and kinetic energy are conserved. Objects bounce off each other.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"579\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124132.354-1024x579.png\" alt=\"\" class=\"wp-image-17366\" style=\"width:503px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124132.354-1024x579.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124132.354-300x170.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124132.354-768x434.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124132.354.png 1472w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inelastic Collision<\/strong>: Momentum is conserved, but kinetic energy is not. Objects may stick together or deform.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-c3022b935967c29c7df202d78111296c\" style=\"color:#000060\"><strong>Real-World Examples<\/strong><\/h3>\n\n\n\n<p><strong>Billiard Balls<\/strong>: When balls collide, momentum is transferred from one ball to another, but the total momentum of the system is conserved.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"579\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124436.329-1024x579.png\" alt=\"\" class=\"wp-image-17368\" style=\"width:510px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124436.329-1024x579.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124436.329-300x170.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124436.329-768x434.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2025\/08\/Untitled-design-2025-08-12T124436.329.png 1472w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p><strong>Recoil of a Gun<\/strong>: When a bullet is fired, the momentum of the bullet and the gun is equal and opposite, conserving the total momentum of the system.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-5e4923c063223d90aa4829086dfc7c81\" style=\"color:#000060\"><strong>Implications and Applications<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Understanding momentum conservation helps in analyzing collisions in sports, vehicle accidents, and space missions.<\/li>\n\n\n\n<li>Used in designing safety features like airbags and crumple zones in cars.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">Let&#8217;s practice!<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/76657\/461\/487\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-42.png\" alt=\"\" class=\"wp-image-6465\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-42.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-42-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-42-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/77034\/169\/384\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-44.png\" alt=\"\" class=\"wp-image-6466\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-44.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-44-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-44-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Conservation Of Momentum Key Notes: Definition of Momentum Momentum is defined as the product of an object&#8217;s mass and its velocity. Law of Conservation of Momentum Mathematical Expression For two objects in a system: Types of Collisions Real-World Examples Billiard Balls: When balls collide, momentum is transferred from one ball to another, but the total<a class=\"more-link\" href=\"https:\/\/9thclass.deltapublications.in\/index.php\/s-9-f-conservation-of-momentum\/\">Continue reading <span class=\"screen-reader-text\">&#8220;S-9.f Conservation Of Momentum&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-3707","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3707"}],"version-history":[{"count":18,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3707\/revisions"}],"predecessor-version":[{"id":17369,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3707\/revisions\/17369"}],"wp:attachment":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}