{"id":3943,"date":"2023-01-09T10:40:18","date_gmt":"2023-01-09T10:40:18","guid":{"rendered":"https:\/\/8thclass.deltapublications.in\/?page_id=3943"},"modified":"2024-12-31T10:10:34","modified_gmt":"2024-12-31T10:10:34","slug":"s-11-d-a-force-can-change-the-state-of-motion","status":"publish","type":"page","link":"https:\/\/8thclass.deltapublications.in\/index.php\/s-11-d-a-force-can-change-the-state-of-motion\/","title":{"rendered":"s-11.d A Force Can Change The State Of Motion"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color has-huge-font-size\" style=\"color:#00056d;text-transform:uppercase\"><strong>A  Force Can Change The State Of Motion<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-c94a149b099fb3f23f355c7448aa9d47\" style=\"color:#74008b\"><strong>key notes:<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-73deeec91a905594811bb3e93267ca47\" style=\"color:#000060\">1. <strong>What is Force?<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Definition<\/strong>: A push or pull on an object caused by interaction with another object.<\/li>\n\n\n\n<li><strong>Unit<\/strong>: Newton (N).<\/li>\n\n\n\n<li><strong>Types<\/strong>: Contact force (e.g., friction, tension) and non-contact force (e.g., gravitational, magnetic).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-7055d9792f88b830837ed53149c48c4d\" style=\"color:#000060\">2. <strong>State of Motion<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>An object\u2019s state of motion refers to whether it is at rest or in motion (constant speed or direction).<\/li>\n\n\n\n<li><strong>Rest<\/strong>: Object is stationary.<\/li>\n\n\n\n<li><strong>Motion<\/strong>: Object is moving in a specific direction with a specific speed.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-81297e20cdcac529a26c5b2d91360712\" style=\"color:#000060\">3. <strong>Effects of Force on the State of Motion<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Change in Speed<\/strong>: Force can speed up or slow down an object.<\/li>\n\n\n\n<li><strong>Change in Direction<\/strong>: Force can change the direction of a moving object.<\/li>\n\n\n\n<li><strong>Start or Stop Motion<\/strong>: A stationary object can start moving, or a moving object can stop due to force.<\/li>\n\n\n\n<li><strong>Examples<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Kicking a football (starts motion).<\/li>\n\n\n\n<li>Applying brakes on a bicycle (stops motion).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-6cb965856274d8723d1e6e391c650b7e\" style=\"color:#000060\">4. <strong>Force and Acceleration<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>When a force is applied to an object, it accelerates according to <strong>Newton\u2019s Second Law of Motion<\/strong>:<br>F=m\u22c5a<br>where F = Force, m = Mass, and a = Acceleration.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-6e8e602e37ed13cc63610f8b4d4cb850\" style=\"color:#000060\">5. <strong>Balanced and Unbalanced Forces<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Balanced Forces<\/strong>: Do not change the state of motion; the object remains at rest or moves with a constant velocity.<\/li>\n\n\n\n<li><strong>Unbalanced Forces<\/strong>: Change the state of motion, causing acceleration.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-b2bf9d6bc2d818de5248f8efd13c84cf\" style=\"color:#000060\">6. <strong>Real-Life Examples of Force Changing Motion<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Pushing a shopping cart: Changes its state from rest to motion.<\/li>\n\n\n\n<li>A soccer ball changing direction when kicked by a player.<\/li>\n\n\n\n<li>A car accelerating or decelerating when the driver presses the accelerator or brakes.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color wp-elements-42a1ef15054ba474788c31fca0e1328d\" style=\"color:#000060\">7. <strong>Force and Friction<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Friction is a force that opposes motion.<\/li>\n\n\n\n<li>While applying force, friction must often be overcome to change the motion.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-afe6b49111b172962af624180e566752\" style=\"color:#000060\">8. <strong>Key Points to Remember<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>A net force must act on an object to change its motion.<\/li>\n\n\n\n<li>The larger the force applied, the greater the change in motion.<\/li>\n\n\n\n<li>Objects resist changes to their state of motion due to <strong>inertia<\/strong> (Newton\u2019s First Law of Motion).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-3fd406180672b72b2043877c5ed6b93f\" style=\"color:#000060\">9. <strong>Activities to Explore<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Roll a ball on a flat surface and observe its motion. Apply force in different directions and note the changes.<\/li>\n\n\n\n<li>Experiment with pushing different weights to feel how force changes the motion differently for objects with varying mass.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\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\/82627\/739\/648\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-105.png\" alt=\"\" class=\"wp-image-7838\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-105.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-105-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-105-150x150.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\/81649\/014\/812\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-104.png\" alt=\"\" class=\"wp-image-7839\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-104.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-104-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-104-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>A Force Can Change The State Of Motion key notes: 1. What is Force? 2. State of Motion 3. Effects of Force on the State of Motion 4. Force and Acceleration 5. Balanced and Unbalanced Forces 6. Real-Life Examples of Force Changing Motion 7. Force and Friction 8. Key Points to Remember 9. Activities to<a class=\"more-link\" href=\"https:\/\/8thclass.deltapublications.in\/index.php\/s-11-d-a-force-can-change-the-state-of-motion\/\">Continue reading <span class=\"screen-reader-text\">&#8220;s-11.d A Force Can Change The State Of 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-3943","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"_links":{"self":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3943"}],"version-history":[{"count":17,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3943\/revisions"}],"predecessor-version":[{"id":19579,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3943\/revisions\/19579"}],"wp:attachment":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}