{"id":3915,"date":"2023-01-09T10:48:36","date_gmt":"2023-01-09T10:48:36","guid":{"rendered":"https:\/\/7thclass.deltapublications.in\/?page_id=3915"},"modified":"2025-12-19T05:40:18","modified_gmt":"2025-12-19T05:40:18","slug":"s-13-b-speed","status":"publish","type":"page","link":"https:\/\/7thclass.deltapublications.in\/index.php\/s-13-b-speed\/","title":{"rendered":"S-13.b Speed"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Speed<\/strong><\/h2>\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\" style=\"flex-basis:100%\">\n<div style=\"position: relative; width: 100%; height: 0; padding-top: 56.2500%;\n padding-bottom: 0; box-shadow: 0 2px 8px 0 rgba(63,69,81,0.16); margin-top: 1.6em; margin-bottom: 0.9em; overflow: hidden;\n border-radius: 8px; will-change: transform;\">\n  <iframe loading=\"lazy\" style=\"position: absolute; width: 100%; height: 100%; top: 0; left: 0; border: none; padding: 0;margin: 0;\"\n    src=\"https:\/\/www.canva.com\/design\/DAGAzoA23h0\/jmvw1bc0ZG_dqKnWpSsWEA\/watch?embed\" allowfullscreen=\"allowfullscreen\" allow=\"fullscreen\">\n  <\/iframe>\n<\/div>\n<a href=\"https:&#x2F;&#x2F;www.canva.com&#x2F;design&#x2F;DAGAzoA23h0&#x2F;jmvw1bc0ZG_dqKnWpSsWEA&#x2F;watch?utm_content=DAGAzoA23h0&amp;utm_campaign=designshare&amp;utm_medium=embeds&amp;utm_source=link\" target=\"_blank\" rel=\"noopener\">speed<\/a> by Delta publications\n<\/div>\n<\/div>\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-04d3681fa05e8b22c2be8dc1069e2a68\" style=\"color:#000060\"><strong>Definition of Speed<\/strong>:<\/p>\n\n\n\n<p class=\"has-large-font-size\">Speed is the distance traveled per unit of time.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"454\" height=\"97\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image.png\" alt=\"\" class=\"wp-image-15295\" style=\"width:470px;height:auto\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image.png 454w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-300x64.png 300w\" sizes=\"auto, (max-width: 454px) 100vw, 454px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>SI Unit of speed: meters per second (m\/s)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-07518dda4cc1d3451ae8bb4e865430ce\" style=\"color:#000060\"><strong>Units of Speed<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Speed can be measured in different units depending on the situation:\n<ul class=\"wp-block-list\">\n<li>Meters per second (m\/s)<\/li>\n\n\n\n<li>Kilometers per hour (km\/h)<\/li>\n\n\n\n<li>Miles per hour (mph)<\/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<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-0c503438ae51a46ae8895305681f0824\" style=\"color:#000060\"><strong>Types of Speed<\/strong>:<\/h3>\n\n\n\n<p class=\"has-large-font-size\"><strong>Average Speed<\/strong>: Total distance traveled divided by total time taken.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"379\" height=\"76\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-1.png\" alt=\"\" class=\"wp-image-15296\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-1.png 379w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-1-300x60.png 300w\" sizes=\"auto, (max-width: 379px) 100vw, 379px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\"><strong>Instantaneous Speed<\/strong>: Speed at a particular moment in time.<\/li>\n\n\n\n<li class=\"has-large-font-size\"><strong>Constant Speed<\/strong>: When an object moves at the same speed for the entire journey.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-5dea4390eb100ff761f3485daa6275fb\" style=\"color:#000060\"><strong>Factors Affecting Speed<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Distance<\/strong>: A greater distance requires more time, which can affect the speed.<\/li>\n\n\n\n<li><strong>Time<\/strong>: More time taken for the same distance will reduce the speed.<\/li>\n\n\n\n<li><strong>Object\u2019s Motion<\/strong>: Speed can change based on whether the object is accelerating, decelerating, or moving at a constant speed.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-d46037afbdac4210a9c5e7c10abcc442\" style=\"color:#000060\"><strong>Speed and Velocity<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Speed is a scalar quantity (only magnitude).<\/li>\n\n\n\n<li><strong>Velocity<\/strong> is a vector quantity, which means it includes both the magnitude (speed) and direction.<\/li>\n\n\n\n<li><strong>Speed<\/strong> doesn\u2019t tell you direction, but <strong>velocity<\/strong> does.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-7498d72231b8d64885197ba39dda31e2\" style=\"color:#000060\"><strong>Relation Between Distance, Speed, and Time<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">The three quantities are interrelated. If any two are known, the third can be calculated using the following formulas:\n<ul class=\"wp-block-list\">\n<li>Distance = Speed \u00d7 Time<\/li>\n\n\n\n<li>Time = Distance \u00f7 Speed<\/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<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-228a685169ad43cbeb877c1a0c061d6f\" style=\"color:#000060\"><strong>Examples<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>If a car travels 100 km in 2 hours, the speed is<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"321\" height=\"65\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-2.png\" alt=\"\" class=\"wp-image-15297\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-2.png 321w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-2-300x61.png 300w\" sizes=\"auto, (max-width: 321px) 100vw, 321px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>If a runner completes 200 meters in 40 seconds, the speed is<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"323\" height=\"71\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-3.png\" alt=\"\" class=\"wp-image-15298\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-3.png 323w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/12\/image-3-300x66.png 300w\" sizes=\"auto, (max-width: 323px) 100vw, 323px\" \/><\/figure><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-c86347c6df4444453c409e0b008cf848\" style=\"color:#000060\"><strong>Practical Applications<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Speed is important in daily life, such as calculating travel time, understanding traffic laws, or determining the speed of athletes.<\/li>\n\n\n\n<li>It is used in fields like physics, transportation, sports, and engineering.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-7e599940714b460398a60da1ac2f5380\" style=\"color:#000060\"><strong>Graphical Representation<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>A <strong>distance-time graph<\/strong> shows how speed varies over time.\n<ul class=\"wp-block-list\">\n<li>A straight line indicates constant speed.<\/li>\n\n\n\n<li>A sloped line indicates changing speed (acceleration or deceleration).<\/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<h3 class=\"wp-block-heading has-text-color has-link-color has-large-font-size wp-elements-97834dd441a7ae6b2555e6474df674c1\" style=\"color:#000060\"><strong>Speed Limits<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Speed limits are regulations that set the maximum allowable speed on roads for safety purposes.<\/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\/82403\/746\/245\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-62.png\" alt=\"\" class=\"wp-image-6032\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-62.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-62-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-62-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-3-62-400x400.png 400w\" 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\/81672\/562\/128\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-57.png\" alt=\"\" class=\"wp-image-6033\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-57.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-57-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-57-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-2-57-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Speed speed by Delta publications Key Notes : Definition of Speed: Speed is the distance traveled per unit of time. Units of Speed: Types of Speed: Average Speed: Total distance traveled divided by total time taken. Factors Affecting Speed: Speed and Velocity: Relation Between Distance, Speed, and Time: Examples: Practical Applications: Graphical Representation: Speed Limits:<a class=\"more-link\" href=\"https:\/\/7thclass.deltapublications.in\/index.php\/s-13-b-speed\/\">Continue reading <span class=\"screen-reader-text\">&#8220;S-13.b Speed&#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,"footnotes":""},"class_list":["post-3915","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3915","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3915"}],"version-history":[{"count":15,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3915\/revisions"}],"predecessor-version":[{"id":17674,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3915\/revisions\/17674"}],"wp:attachment":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}