{"id":3685,"date":"2023-01-09T10:15:47","date_gmt":"2023-01-09T10:15:47","guid":{"rendered":"https:\/\/9thclass.deltapublications.in\/?page_id=3685"},"modified":"2024-11-26T11:09:19","modified_gmt":"2024-11-26T11:09:19","slug":"s-8-a-describing-motion","status":"publish","type":"page","link":"https:\/\/9thclass.deltapublications.in\/index.php\/s-8-a-describing-motion\/","title":{"rendered":"S-8.a Describing Motion"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Describing Motion<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>Key Notes:<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-9c2b0e4dfce1fefc7ea7dcd523044fec\" style=\"color:#000060\"><strong>Definition of Motion<\/strong>:<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>Motion occurs when an object changes its position relative to a reference point over time.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-6c7cf5cd11377418c111640f1613fa3d\" style=\"color:#000060\"><strong>Types of Motion<\/strong>:<\/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=\"478\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/f842671b-9cda-4cf8-9e34-1fbb9843b58e-1024x478.png\" alt=\"\" class=\"wp-image-16176\" style=\"width:486px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/f842671b-9cda-4cf8-9e34-1fbb9843b58e-1024x478.png 1024w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/f842671b-9cda-4cf8-9e34-1fbb9843b58e-300x140.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/f842671b-9cda-4cf8-9e34-1fbb9843b58e-768x358.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/f842671b-9cda-4cf8-9e34-1fbb9843b58e.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Linear Motion<\/strong>: Movement in a straight line (e.g., a car moving on a road).<\/li>\n\n\n\n<li><strong>Circular Motion<\/strong>: Movement in a circular path (e.g., the motion of a ceiling fan).<\/li>\n\n\n\n<li><strong>Rotational Motion<\/strong>: Motion of an object around its axis (e.g., Earth\u2019s rotation).<\/li>\n\n\n\n<li><strong>Oscillatory Motion<\/strong>: Back-and-forth motion (e.g., a pendulum).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-0be2003a8cedf8cb0e8fbe2c07eece47\" style=\"color:#000060\"><strong>Reference Point<\/strong>:<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>A fixed point used to determine the position of a moving object.<\/li>\n\n\n\n<li>Motion is always described relative to this reference point.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-36224038057a721f283148a3e1304f04\" style=\"color:#000060\"><strong>Distance and Displacement<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"692\" height=\"443\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-92.png\" alt=\"\" class=\"wp-image-16177\" style=\"width:442px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-92.png 692w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-92-300x192.png 300w\" sizes=\"auto, (max-width: 692px) 100vw, 692px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Distance<\/strong>: The total path length traveled, a scalar quantity (only magnitude).<\/li>\n\n\n\n<li><strong>Displacement<\/strong>: The shortest straight-line distance between the initial and final positions, a vector quantity (magnitude and direction).<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-0f5bc4e34f489babf29521fb884f3f46\" style=\"color:#000060\"><strong>Speed and Velocity<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"432\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-93.png\" alt=\"\" class=\"wp-image-16178\" style=\"width:496px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-93.png 768w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-93-300x169.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Speed<\/strong>: The rate at which distance is covered (scalar quantity). <\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\">Speed = Distance \/ Time<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Velocity<\/strong>: The rate at which displacement occurs (vector quantity). <\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\">Velocity = Displacement \/ Time<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>Uniform motion has constant speed\/velocity, while non-uniform motion involves changing speed\/velocity.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-b234f20c681272cf6ccd00b986d0fc9d\" style=\"color:#000060\"><strong>Acceleration<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"733\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-59.png\" alt=\"\" class=\"wp-image-16179\" style=\"width:444px;height:auto\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-59.png 733w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-59-300x205.png 300w\" sizes=\"auto, (max-width: 733px) 100vw, 733px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>The rate of change of velocity over time. <\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\">Acceleration = Change\u00a0in\u00a0Velocity \/ Time\u00a0Taken<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li class=\"has-large-font-size\">Positive acceleration indicates increasing velocity; negative acceleration (deceleration) indicates decreasing velocity.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-2d1e2c383742ce3ad01499fb5487b84b\" style=\"color:#000060\"><strong>Graphical Representation of Motion<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"293\" height=\"272\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-95.png\" alt=\"\" class=\"wp-image-16181\" style=\"width:274px;height:auto\"\/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Distance-Time Graph<\/strong>: Slope represents speed. A straight line indicates uniform motion.<\/li>\n\n\n\n<li><strong>Velocity-Time Graph<\/strong>: Slope represents acceleration. The area under the graph gives displacement.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-06e3ce67facf199505cd822d73137b80\" style=\"color:#000060\"><strong>Equations of Motion (For Uniformly Accelerated Motion)<\/strong>:<\/p>\n\n\n\n<p class=\"has-large-font-size\">First equation: v = u + at<\/p>\n\n\n\n<p class=\"has-large-font-size\">Second equation: s = ut + 1\/2 at<sup>2<\/sup><\/p>\n\n\n\n<p class=\"has-large-font-size\">Third equation: v<sup>2<\/sup> = u<sup>2<\/sup> + 2as Where:<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>v: Final velocity<\/li>\n\n\n\n<li>u: Initial velocity<\/li>\n\n\n\n<li>a: Acceleration<\/li>\n\n\n\n<li>s: Displacement<\/li>\n\n\n\n<li>t: Time<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-0b44ce5c45391f03c2057389f1913eb4\" style=\"color:#000060\"><strong>Relative Motion<\/strong>:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"397\" height=\"127\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-96.png\" alt=\"\" class=\"wp-image-16182\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-96.png 397w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-96-300x96.png 300w\" sizes=\"auto, (max-width: 397px) 100vw, 397px\" \/><\/figure><\/div>\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>Motion of an object observed from another moving or stationary reference point.<\/li>\n\n\n\n<li>Important for understanding relative speed in cases like vehicles moving in opposite or the same direction.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-6c710bc6a8c17b3a2e8e5b68dea08f88\" style=\"color:#000060\"><strong>Examples of Motion<\/strong>:<\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>Walking, flying an airplane, Earth&#8217;s orbit around the Sun.<\/li>\n<\/ul>\n\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-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\/82408\/505\/991\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-31.png\" alt=\"\" class=\"wp-image-6432\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-31.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-31-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-31-150x150.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\/81559\/459\/746\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-33.png\" alt=\"\" class=\"wp-image-6433\" srcset=\"https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-33.png 500w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-33-300x300.png 300w, https:\/\/9thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-33-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Describing Motion Key Notes: Definition of Motion: Types of Motion: Reference Point: Distance and Displacement: Speed and Velocity: Speed = Distance \/ Time Velocity = Displacement \/ Time Acceleration: Acceleration = Change\u00a0in\u00a0Velocity \/ Time\u00a0Taken Graphical Representation of Motion: Equations of Motion (For Uniformly Accelerated Motion): First equation: v = u + at Second equation: s<a class=\"more-link\" href=\"https:\/\/9thclass.deltapublications.in\/index.php\/s-8-a-describing-motion\/\">Continue reading <span class=\"screen-reader-text\">&#8220;S-8.a Describing Motion&#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-3685","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3685","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=3685"}],"version-history":[{"count":17,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3685\/revisions"}],"predecessor-version":[{"id":16183,"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3685\/revisions\/16183"}],"wp:attachment":[{"href":"https:\/\/9thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}